Natural World investigates the vital bond between animal mothers and their babies. The more we study animals, the more we realise just how emotional they are; all mothers are faced with tough choices as they struggle to bring up babies in a difficult and dangerous world, constantly balancing their own needs with those of their infants. Yet there are many ways to raise your brood, from the fish who looks after her young in her mouth to the extended childhoods of gorillas or orang-utans.

Manta rays are one of the most intelligent creatures in the ocean and, at up to seven metres long, one of the largest. Yet despite their size and curious nature, almost nothing is known about their lives. Young marine biologist Andrea Marshall has given up everything for a life in Mozambique, diving amongst these beautiful animals. Superb underwater photography reveals new manta ray behaviour including breathtaking footage of their ritual courtship dances. The film follows Andrea as she studies these endangered animals up close. With the discovery of a giant new species and remarkable insights into mantas' secretive lives, Andrea's findings are already rocking the world of marine biology.

The story of Naabi, a young hyena growing up in Tanzania. Here hyenas aren't just scavengers, they're also skilled hunters when they work together in the clan. But life is still a struggle, and except for the few weeks a year when the wildebeest pass through, there isn't enough food to go around. Lions are their mortal enemies - they are quick to attack hyenas and often scavenge their kills. After Naabi's mother is killed by lions, life becomes even more difficult for the young hyena and she's forced to leave the clan, braving the perils of the outside world as she travels alone in search of food.

The incredible story of Charlie Russell - the man who has devoted his life to the grizzly bears of the Kamchatka Peninsula. The Russian mafia killed Charlie's beloved bears but now he's back with four new cubs and he's trying to prove that Russia can live with its grizzlies. This film follows Charlie as he restarts the project, spending nine months living with the orphaned cubs as they become increasingly independent and make the crucial transition to the wild. But will he be able to keep them safe from other grizzlies and the ever-present threat of poachers?

A look at the unique wildlife of Hokkaido, Japan's northernmost island, and the island's few remaining members of the ancient Ainu race, who see all animals as sacred. Swept by winds from the high Arctic, Hokkaido is an island of towering volcanos and fairytale forests, where cranes perform dances in the snow, brown bears plunge for salmon in rivers and eagles plunder the spoils from winter fishing fleets. The unique wildlife of Hokkaido has long been worshipped by an ancient race of hunter-gatherers, called Ainu, a few of whom still survive among modern Japanese. Even today, they honour the natural world around them through ritualised dance and prayer.

Rats - should we like them? Some people hate and despise these rodents. As the Chinese Year of the Rat draws to a close, down on the farm the rats' year goes on. Resourceful and adaptable, these successful invaders have enjoyed our unwitting hospitality for over two centuries. But this Jekyll and Hyde of animals challenges our prejudices. Is it not also an attractive pet, and a clever animal; and don't we all owe our lives to the rat as a tool of research into good health? This animal opportunist should be watched - even from behind your chair....

As a child Jane Goodall dreamt of going to Africa and living with the animals. In 1960 her dream became reality: she began a study of chimpanzees in Tanzania's Gombe National Park. Today, more than two decades later, her work still continues, and it has given us a remarkable portrait of the animal most like man. Spanning three generations of chimps, it shows them in all their moods.... playful infants, turbulent adolescents and adults whose behavior ranges from tender motherhood to hunting and even murder.

Known to be aggressive and dangerous, hippos are also fiercely protective of their young. Watch as mother hippos in Africa risk everything to keep their newly born calves away from predators, both in and out of the water.

Giant Pandas were on the brink of extinction but now they are coming back, thanks to an extraordinary conservation project. The Chengdu Research Base in central China is at the heart of a project to breed 300 pandas, and then start introducing them back into the wild. It is the most ambitious and controversial conservation effort ever mounted. Shot over two years, this film follows the pandas and keepers as, through visionary science and round-the-clock care, they edge closer to the magic number of 300.

David Attenborough's entertaining romp through the world of monkeys has a serious side: for when we look at monkeys we can see ourselves. From memory to morality, from 'crying wolf' to politics, monkeys are our basic blueprint. Pygmy marmosets 'farm' tree sap; bearded capuchins in Brazil develop a production line for extracting palm nuts; white-faced capuchins in Costa Rica tenderly nurse the victims of battle; and in the Ethiopian highlands a deposed gelada baboon has got the blues.

Biologist Joe Hutto was mother to the strangest family in the world, thirteen endangered wild turkeys that he raised from egg to the day they left home. For a whole year his turkey children were his only companions as he walked them deep through the Florida Everglades. Suffering all the heartache and joy of any other parent as he tried to bring up his new family, he even learnt to speak their language and began to see the world through turkey eyes. Told as a drama documentary with an actor recreating the remarkable scenes of Joe's life as a turkey mum.

David Attenborough tells the revealing story of this Caribbean island's exotic but vulnerable wildlife. A team of conservation champions are making it their mission to save the most precious species. We see how Puerto Rican parrots, manatees and turtles are now making a comeback.

Vultures are the birds that many people love to hate, but cameraman and naturalist Charlie Hamilton James sees them as beautiful and intelligent creatures that deserve respect. He believes that to appreciate them, people just need to spend time with them and he headed to East Africa to do exactly that. His journey exposes not only a softer, more caring side to these maligned birds but also a much bigger story, one that leaves vultures needing many more admirers.

The giant squid, a creature of legend and myth which even in the 21st century, has never been seen alive. But now, an international team of scientists think they have finally found their lair, one thousand metres down, off the coast of Japan. This is the culmination of decades of research. The team deploys underwater robots and state of the art submersible vessels for a world first - to find and film the impossible.

The Komodo dragon was discovered one hundred years ago, yet the true nature of the biggest lizard in the world is only just being uncovered. Using hi-tech tools to take a fresh look at this prehistoric beast, Dr Bryan Fry discovers there is a lot more to the dragon than meets the eye - from hidden venom glands to its secret origins.

Natural World visits the Arizona desert, where a new honey ant queen wages an intense battle for survival as she attempts to build and defend her empire. Eliminating rivals with ruthless efficiency, sacrificing thousands in her quest for domination, murder, cannibalism, genocide - she will do anything to keep her crown. Empire of the Ants is the epic story of one honey ant queen's dramatic rise to power - her brutal fall from grace.

The harpy eagle is the most powerful bird of prey in the world, plucking monkeys from the branches of the jungle canopy. Rare and elusive, they are seldom seen, but with the discovery of a harpy nest in the remote Orinoco rainforest of Venezuela, wildlife film-maker Fergus Beeley has a unique opportunity to follow the life of a chick from birth to adulthood. Fergus ascends high into the canopy to reveal a stunning world of colour and sound, following the trials of the harpy eagle's newly hatched chick as it grows up. Fergus becomes just another member of the dazzling community of birds and animals surrounding the harpy nest and develops an unexpectedly close bond with the chick.

Jonathan Scott narrates the extraordinary story of the leopard - the one big cat that still survives across half the world while tigers, cheetahs and lions are all struggling. By following the lives of leopard mothers and their cubs in East Africa the film investigates what it is about the natural history of these cats that makes them born survivors. Perhaps the most extraordinary revelation is that leopards are living undercover on farms and even in cities across Africa and Asia.

In the small African kingdom of Swaziland, the black mamba is a snake both feared and revered. During summer, these elegant yet lethal snakes turn up everywhere - in homes, schools and cars - and people are bitten every week. Enter Thea Litschka-Koen, a mum and hotel manager who has become known affectionately as the white witch. She and her husband are on call 24 hours a day to rescue and release black mambas when they get too close for comfort. But what everyone wants to know is will they come back again? We follow Thea and her team as they set up a pioneering new scientific project: to track the black mambas they release back into the wild, and find out just how these deadly snakes spend their lives.

In 1961, a four-year-old chimpanzee named Ham became the first animal to return from space alive. He proved that humans could survive the extreme conditions of space. This drama, based on NASA's records and archive footage, tells the story of this remarkable chimp and Jeff, the handler who came to love him over two years of training.

Martyn Colbeck has spent 15 years scouring Africa for the ultimate images of the world's largest land creature- the African Elephant. Along the way he has learned how to read elephant minds, gain unsurpassed levels of trust and, so, achieve pictures of spectacular beauty and insight. An Eye For an Elephant charts the journeys Colbeck has made since he first became entranced by the magic and mystery of elephants after he arrived in Amboseli National Park in 1990 and met Echo, a young matriarch. His work on an eventual trilogy about Echo and her family resulted in scenes of elephant life and behaviour never seen on screen before - and inspired him to seek out and film other herds, including the forgotten elephants who struggle for survival in the parched deserts of Namibia and the dense confines of the Congolese jungle. The story of his personal and wildlife discoveries is told by inter-cutting new footage and Colbeck’s recollections with archive treasures and a selection of the powerful still images that helped him to win the title International Wildlife Photographer of the Year. As the story unfolds, viewers experience the intensity of the camerman’s relationship with the elephants he views almost as family, and gain a sense of why they deserve his affection.

Documentary about Plitvice National Park in Croatia, Europe's oldest and one of its most beautiful national parks - a network of crystal clear lakes connected by thousands of waterfalls. Its ancient beech forests are a stronghold for wolves, lynx and bears, animals that almost became extinct during the Balkan civil war and are now recovering. Hidden beneath the trees are spectacular limestone caves, home to salamanders and cave voles.

Rebecca Hosking presents an insight into the world of vampire bats, observing them in their natural habitat. She reveals that despite their dark reputation, they possess amazing abilities, including seeing in the dark and echo-location - technology which could benefit humans with impaired vision

Is your dog color blind? How do cats and owls see so much at night and high-flying kestrels spot tiny mice scuttling in the grass below? Do insects tune in to colors invisible to us? Is a scarlet anorak like a red rag to a bull and can a rattlesnake really see its prey in total darkness? With the help of video techniques and specially-developed cameras, this program sets out to answer these questions and many more and to visualize what the world looks like through the eyes of a wide range of different animals. The results are often surprising.

Once a shooting reserve, now a rich wildlife preserve, Long Point on the north shore of Lake Erie is a testimony to the resilience of nature and to the benefits of the sport of wild fowling. In protecting their shooting, past wildfowlers also conserved the wildlife of Long Point. It is now a permanent home to rails, raccoons, toads and turtles and visited by migrating wildfowl.

Two mother cheetahs, able to reach top speeds of nearly 70 miles per hour, are in a race to protect and feed their new cubs. Predators close in on the families, who must work to prevail on the Serengeti Plains of Africa.

David Attenborough narrates the intimate story of a leopard mother and her two cubs. This very special family must survive in the wilds of Botswana alongside some less-than-friendly neighbours: lions, wild dogs and hyenas. The competition for food is tough, and if they are going to make it they must learn a new skill - they must learn to fish. This is an epic family drama. With them every step of the way is local cameraman Brad Bestelink. Brad's 18-month journey following the lives of these secretive big cats offers a rare glimpse into an otherwise hidden world.

With their charismatic faces and extraordinary head-turning ability, owls are one of our best-loved birds. And yet it's rare to catch more than a glimpse of one in the wild. These mysterious birds haunt our night, floating through the darkness with an eerie silence. But how do they see in the dark? And how do they fly so silently? Through the eyes of two special barn owl chicks and with the help of world leading scientists, Natural World reveals the magic behind owls' superpowers.

Diablo the giant otter lives in a lake in the jungles of Peru, with his unruly family of six cubs. Even at the tender age of six months, they need to learn how to survive in this dangerous paradise. Their dad teaches them to swim and eventually to catch piranha for themselves, but they must also learn to stay away from the neighbours from hell - the giant caiman. These large members of the crocodile family are a real threat to the giant otter family and Diablo must go to extraordinary lengths to try to protect his cubs. Renowned cameraman and otter specialist Charlie Hamilton-James returns to the place he first filmed Diablo thirteen years ago. Following the family over several months, sometimes in very difficult conditions, he discovers how perilous a home this is for the cubs and watches them develop under the careful guidance of their father. He also films remarkable scenes of the giant otters fighting the caiman.

From enormous tortoises and deep-diving lizards to fish-eating snakes and birds that hunt giant venomous centipedes, the wildlife of the world-famous Galapagos Islands is unique and bizarre. This wilderness once inspired Charles Darwin's theory of evolution, but it is currently undergoing a human revolution, with tourism driving a population boom. David Attenborough narrates this modern-day story of the Galapagos and reveals whether, in this ever-changing world, its animals can still thrive.

In the 1960s, 'Born Free' captured the world's imagination with the story of Elsa, an orphaned lioness who was taken in by George and Joy Adamson and returned to a life in the wild. The book and film sparked a new love of nature that has blossomed ever since, but the true story of what happened afterwards was far more tragic as both George and Joy were murdered. Fifty years on, this emotional and revealing drama documentary re-lives those events - with intimate contributions from Virginia McKenna and David Attenborough.

The Himalayas look beautiful and lifeless, unable to give anything, not even enough air. Yet this powerful film reveals the Himalayas provide many gifts - water and food for animals, and for people too, rice and religion, or pets and perfumes.

The Giant Japanese Hornet is the fiercest looking insect on earth, and one of the deadliest. This film follows the remarkable life of one giant hornet queen, as she emerges from hibernation and starts to build up a colony in an old temple garden. Her army of warriors terrorise the beautiful mountain valley in their constant struggle to find food for their hungry grubs. In a series of dramatic pitched battles, the giant hornets massacre thousands of bees, but victory isn't always assured - one local honeybee fights back thanks to a remarkable defensive strategy, and suddenly it is the hornets that are dying. A beekeeper monk bears witness to the rising power of the giant hornet colony, and despite the hornet's attacks on his own bees, he reveals a deep respect for these incredible predators.

Who are you going to call when beavers are behaving badly? Well, if you live in Jackson Hole, Wyoming, Drew Reed is the go-to 'beaver buster'. Drew works as a wetland conservationist, helping to keep the peace between beavers and people. These busy rodents are incredibly industrious - felling trees and building dams are two of their favourite occupations. This can be good news in the wild, helping create rich habitats for a variety of wildlife, but in backyards it can spell disaster. A beaver is more than capable of bringing down a tree large enough to damage property and their dam building can result in flooded homes. Drew must do what he can to steer beavers away from trouble and stop their so-called bad behaviour.

In this Natural World special, three tiny orphaned jaguar cubs are discovered in a Brazilian forest. A family decide to take the place of their mother and train them to become wild again. Over two years they must learn to climb trees, swim, and hunt for their dinner. If they can be successfully released, it will give new hope to these rare animals. Narrated by Zoe Wanamaker.

The killer whale is one of the most feared predators in the ocean and most would consider it madness to enter the water with one. But New Zealander Dr Ingrid Visser thinks differently - and by swimming with her beloved whales she has come to know almost all of them by sight. But there's been an unusual number of deaths recently and Ingrid is on a mission to find out what is going on. Her findings reveal disturbing new information about the health of our oceans.

Running through the heart of Ireland, the Shannon is the longest river in the British Isles. For locally born naturalist and cameraman Colin Stafford-Johnson, it is also the wildest. Amongst the river's cast are kingfishers and predatory pike, and living on its banks are native red squirrels. On a seasonal journey in his faithful canoe, Colin paddles along the Shannon to reveal its wild treasures.

In what turns out to be an explosive year, witness Iceland through the eyes of the animals and people that have made this wild island home. An arctic fox family must eke out a cliff-top living, an eider farmer has his hands full playing duck dad to hundreds of new arrivals and Viking horsemen prepare to saddle up for the autumn round up. But nature's clock is ticking, and the constant volcanic threat eventually boils over with one of Iceland's biggest eruptions in more than 200 years. This land of ice and fire will not be tamed.

Brolga is a tough Australian who lives in the desert outback with a mob of orphaned kangaroos. He rescues baby joeys from the roadside when their mothers are killed and nurses them back to health. Now he is sharing his one room tin shack with three joeys he hopes to return to the wild.

Pure white lemurs called silky sifaka live in the remote rainforests of Madagascar. They are one of the rarest animals in the world. Now a passionate scientist joins forces with an undercover detective to investigate whether there is a link between these endangered lemurs, illegal logging and expensive guitars in the USA.

A dolphin is about to be born in the treacherous waters of Shark Bay in Western Australia. Puck, the wise mother, must use all her skills to keep her newborn safe from the sharks that sweep into the bay every year. With the help of her close knit family of females she must teach the vulnerable baby dolphin the secrets of survival. From whistling to her unborn calf, to the first few hours of baby Samu's life and the struggles her eldest son faces leaving home, this film provides a rare insight into the lives of bottlenose dolphins.

An intimate portrait of the spectacular Drakensberg - 'dragon mountains' - of South Africa, following giant antelope, bone-cracking vultures and raucous baboons as they struggle to survive in a land of extremes.

Wildlife documentary. In the forests of northern Minnesota, biologist Lynn Rogers uses food to gain the trust of wild black bears, a controversial technique developed over his own forty-year journey from fear to fascination. Following the fortunes of mother bear June and her three cubs over a year, the film reveals an intimate portrait of the lives of black bears.

The Snow Leopard, one of the most beautiful of all big cats is also one of the rarest. Natural World visits a hidden lair and lifts the veil on this elusive predator.

David Attenborough is in the Swiss Jura Mountains to discover the secrets of a giant. Beneath his feet lies a vast network of tunnels and chambers, home to a huge empire of ants. It is believed to be one of the largest animal societies in the world, where over a billion ants from rival colonies live in peace. Their harmonious existence breaks many of the rules for both ants and evolution, and raises some important questions. Through winter, spring and into summer, David turns detective to find the answers.

It really is a big bad world out there. So what happens if you are the little guy? This film tells the epic survival stories of the world's smallest animals. To make a living, these tiny heroes have evolved extraordinary skills and achieved mind-boggling feats. From the animal kingdom's greatest artist to the tiny creatures that provide us with so much of the air we breathe, we discover what it takes to be a miniature miracle.

The world's biggest beasts have always captured the imagination. But whilst being big can have its advantages, it also comes with sizeable challenges. Take the world's largest lizard, the Komodo dragon, whose huge appetite means it must take on prey ten times its weight or the tallest animal of them all, the giraffe, who with such a long neck must control immense blood pressure. Nature's biggest beasts must go to extraordinary lengths to thrive. These are their epic survival stories!

The animal kingdom possesses a fearsome arsenal - a variety of extreme weapons used in epic battles to gore, stab, crush and batter. But are they more than just instruments of deadly force? For Professor Doug Emlen, it has been his lifetime's ambition to discover the secrets of nature's arms races, what triggers them and what they can teach us about the most formidable weapons on earth - our own.

A mother grizzly bear brings up her two cubs in the wilds of Alaska. She must keep them safe from prowling males, teach them to hunt and prepare them to survive the savage winter. Alaska has the highest density of grizzlies in the world, so fights and face-offs are common. Biologist Chris Morgan spends the summer in this city of bears - often getting far too close for comfort.

As a boy, frogs were the first animals Sir David Attenborough kept and today he is still just as passionate about them. Through his eyes, the weird and wonderful world of frogs is explored, shedding new light on these charismatic, colourful and frequently bizarre creatures. David reveals all aspects of the frogs' life, their anatomy, their extraordinary behaviour and their ability to live in some of the most extreme places on the planet, as he goes on an eye-opening journey into the fabulous lives of frogs.

Anchorage capital city of Alaska is the wildest city on Earth thanks to its dramatic wildlife. Alongside 260,000 people are up to 1,000 moose, 200 black bears and 60 grizzlies as well as large numbers of beavers, ravens and eagles. Managing this urban menagerie is all in a day's work for rangers Rick and Jesse. They believe that people and large dangerous animals can live in one city and through the groundbreaking Alaska Fish and Game project they're determined to prove it.

Documentary focusing on the wildlife of the European Alps, a spectacular wilderness area in the heart of the world's most densely settled continent. Carved by ice-age glaciers and invaded by animals adapted to life in harsh conditions, such as bears, wolves, golden eagles and ibex, the region is much more than a vast arena of ski slopes. Narrated by Andrew Sachs.

The highest peak in south-east Asia, Kinabalu, was once a mountain of legend and fable. To Chinese adventurers it was the abode of a dragon, rumored to guard a pearl by a lake at the very summit. Today's visitors have yet to find a pearl.... or see a dragon ... but there are riches of another kind. A cool island rearing precipitously from the hot and humid lowlands, Kinabalu is a treasure-house of plant and animal life. Bizarre carnivorous pitcher plants, big enough to drown a rat, share its slopes with huge begonias and stately tree-ferns. Flamboyant rhododendrons shelter the elusive ferret badger as it hunts for giant worms, and there are nearly 1,500 kinds of orchid, many found nowhere else in the world.

There are only two seasons in the Serengeti, dry and wet. As the long dry season ends, the clouds begin to darken as the rain signals new life on the Serengeti Plains.

The wildebeest path on their endless migration is impeded several times by rivers. The waterways have certain dangers that can can result in death for the wildebeest, mainly the Nile crocodile.

Documentary programme on Keith Brockle who spent twelve months painting and drawing the bird life on the Isle of May in the Firth of Forth.

On a remote Pacific island a mysterious lake lies hidden by dense jungle. Below the surface a gigantic shimmering phantom swims, tracking the sun. This weird life form is composed of jellyfish - millions of them - a boiling mass of medusae. Like the other bizarre inhabitants of the lake, imprisonment in this peculiar marine underworld has changed their behavior. But there are other surprises too in this first filmed exploration of the labyrinthine limestone islands of Palau - rain forests sprout from razor-sharp coral rubble; whip scorpions, giant crickets and bats haunt vast caves; and a deep lake pulsates with a strange presence.

Time, climate and the needs of the Irish have fashioned a magical island. Cast free when the ancient bridge from Britain sank, it still holds within its saucer of ice-scoured rocks the animals and plants that followed the retreat of the glaciers. There are Irish deer, Irish stoats and Irish mountain hares, but no snake ever came to trouble the people who cut the forests, fished and farmed. They invented a land of fairy tales, but there are real mysteries too: a strange meeting of the Arctic and the Mediterranean in a moonscape of white rock called the Burren; the unbroken ebb and flow of wildfowl from this mild winter haven; and the daunting sprawl of the bogs - unbeautiful to some, yet valuable to all, fragile wildernesses in a land wild with change.

Leaves are nature's pacifists -or so it seems. Leaves hang there green and uncomplaining, while animals chew them to death, birds tear them from their stems for nest building, and dusky maidens (it's rumored) roll them on their thighs to provide grandad with a fragrant cigar. But foliage fights back. Leaves struggle for survival in ice and in desert. They battle to the death for life-giving sunlight. Above all, they wage a relentless war against the animals who live on them. Above our heads, beneath our feet, the battle continues....

An idyllic British river: misty dawns, dancing mayflies, lazy trout and fluffy chicks paddling under the watchful gaze of their parents. "My Halcyon River" is an intimate portrait of a secret world where otters hunt on the midnight current, mink lie in wait to ambush unwary victims and gleaming kingfishers pierce the water to spear their prey. These dramas, both mortal and touching are revealed through the eyes of a man who has loved the river since he was a boy, cameraman Charlie Hamilton-James.

Film about a family of lions living in the swamps of the Okavango delta, seen through the eyes of a cub born just before the annual flood.

An ancient oak wood in the heart of England is as full of beauty and drama as anywhere on Earth. Philippa Forrester spends a year witnessing its secret life - the sparrow-hawk terrorising blue tits, fox cubs learning to stalk rabbits and a buzzard looking for love.

This exquisitely photographed film is a spiritual journey into the ethereal landscape of Dartmoor with Satish Kumar, the world-renowned ecologist, former Jain monk and pilgrim for peace. Through changing seasons, Satish walks the moor and explores ancient woods and rivers, which are home to a wealth of wildlife including red deer, emperor moths, starling roosts, kestrels and foxes. His meditations on the natural world are lyrical, uplifting and timely.

Wildlife documentary featuring the fascinating lives of Britain's beautiful butterflies filmed in exquisite detail and also a celebration of their enduring appeal to the British people. Butterfly-costumed carnival-goers dance at Notting Hill, street artist Nick Walker uses their image to brighten bare city walls, burlesque dancer Vicky Butterfly recreates butterfly dances and at Britain's biggest tattoo convention women reveal their butterfly tattoos. Britain's butterflies have never been so threatened, three quarters are in decline. A search for butterflies leads to some of the most beautiful parts of Britain. It opens up the intriguing possibility that a passion for butterflies could help us preserve the landscapes that we love.

This is the emotional story of one young killer whale's quest for companionship after he was separated from his family. Luna was just two years old when, alone and confused, he found himself on the rugged, wild coast of Vancouver Island. Following his tumultuous life, the film records the human friendships he developed and the trouble this led him into. From death threats, to numerous capture attempts by the government, the film-makers watched as people tried to determine his fate. Luna shows us how quickly our lives can once again cross with the natural world.

Tiger experts in Bangladesh have a problem: how can they encourage local people to protect the beautiful and endangered Bengal tiger when these animals have developed a taste for human flesh? The Sundarbans forest is one of the biggest tracts of mangrove forest left in the world. It is rich in wildlife and provides important forest resources for communities living around its edge. But up to 50 forest workers are killed by tigers each year and now the boldest animals are sneaking into villages at night. This gripping film reveals the tension and heartache of living so close to a killer cat and follows the bold attempt by one village to teach street dogs to scare away the rogue tiger on their doorstep.

In the outback of Australia, the world's most famous 'kangaroo mum' is expanding operations. Brolga, aka Kangaroo Dundee, is opening his doors to a whole new bunch of animal characters, including a trio of camels and a southern hairy-nosed wombat called Pete. The kangaroo joeys are still very much a priority but these days Brolga is sharing maternal duties with his wife Tahnee. With three emu chicks set to move into the family home and the dream of building a wildlife hospital about to become a reality, life in the Australian bush is more hectic than ever before.

On an African river in the Serengeti, a mother crocodile defends her babies against predators in the sky and on the ground. Discover the secret way that crocodiles have survived for millions of years.

A newborn wildebeest befriends a fierce lioness, and a rare meeting between two river monsters, a hippopotamus and a Nile crocodile.

The wildlife of the Danube delta in the Black Sea, especially the white pelicans.

The programme is about bumble bees in the forests of New England. We follow a queen bumble bee as she emerges from hibernation to find a suitable nest site and establish a colony from the eggs she has carried over the winter. She duels with a rival queen. Honey bees, bee mites and wax moths also feature in her life story.

Documentary which tells the story of some of the discoveries made by Indian ornitholigist Salim Ali

Greenpeace fights in the front line of the conservation battle, where the whales or the seals are being killed, the toxic waste is being dumped, the bombs are being exploded. Their policy is non-violent direct action. They break the law and make the headlines, and in a few years they've grown from a handful of west-coast idealists into a fashionable international movement. This is the story of how it happened, told through some of their most impudent and most daring campaigns.

Pearls once brought wealth to the Arabian Gulf. Today it comes from oil that gushes from beneath the sea. The gulf's bounty of wildlife is a part of its natural riches too. Migrating birds flock to its shores and its waters conceal a stunning array of creatures: sea snakes, batfish, corals, huge shoals of jacks and blooms of jellyfish that stretch to the horizon. But for how long can these priceless treasures survive the onslaught of modern development or, worse still, the war which now threatens its shores?

Truk Lagoon in the western Pacific is a peaceful tropical atoll. In 1944 its tranquillity was shattered when the US Navy surprised and sank a fleet of 60 Japanese ships. Within 40 years a dazzling array of corals and colorful fish have transformed this sunken arsenal into the world's largest artificial reef.

A Cotswold dry-stone wall, built 400 years ago, is a haven for wildlife. The cracks, crevices and man-made crags of a Cotswold dry-stone wall form one of the harshest places for wildlife to live. There are plants that survive deluge and drought, 'wall-fish' that swim in a bed of slime, and royal households that each year rise to power, decline and die. There are creatures that emerge from the ghostly skins of their former selves, woody stems that keep demons from the door, and lichens, with a calendar spanning the four centuries etched into their patterns, that turn the stone wall into an enchanted wilderness; in all, a remarkable place and probably the most overlooked nature reserve in the world.

Looks at the extraordinary properties of frog and toad skin, showing how it enables them to survive hostile environments. Amphibian skin contains many chemical compounds, including antibiotics, fungicides, anti-viral agents and toxins, which serve as built-in barriers against infection and protection from predators. Scientists in America have even identified an anti-cancer agent in the skin of certain amphibians. One sequence reveals a dangerous and illegal craze in California for toad licking - the skin of some toads contains hallucinogens so powerful that the US Drug Enforcement Agency puts it in the same class as heroin. The programme features toad and frog species from Britain and the continents of Africa, America, Asia and Australia.

Documentary about the geological and natural history of the Himalayas, the highest and youngest mountain range in the world. The landscape is home to a remarkable diversity of wildlife, including red pandas, snow leopards and iridescent pheasants.

Herds of elephant, buffalo and impala graze on rich green grass by pools formed by the meandering Zambezi. But the short rainy season soon ends, and the battle for survival begins.

Wildlife documentary looking at some of the many species of life found in the Florida Everglades and the threat to the environment posed by nearby Miami.

Documentary following the latest chapter in the story of Echo the female elephant and her family in the Kenyan National Park of Amboseli. Scientist Cynthia Moss believes she is charting the 59-year-old matriarch's decline - until she makes a surprising discovery. Narrated by David Attenborough. Part of 100 Years of Wildlife Week

Sean Pertwee narrates this documentary exploring the passions and intrigues - from families torn asunder to jealous plots and sibling rivalries - that drive members of the world's largest wolf pack, living in Yellowstone National Park.

Documentary that looks at the world of the African driver ant, a sinister army of 20 million sisters. It thrives by ravaging the forest, killing every living thing it can pin down and slice up - a super-organism that dominates a parallel and often violent world where miniature monsters roam.

This moving film reveals the differing fortunes of a mother polar bear and a mother grizzly bear, and their new-born cubs, in a rapidly-changing world. The shrinking Arctic ice may be making life much tougher for polar bears, but it is offering new opportunities for grizzly bears to the south. Where once the lives of white and brown bears could not have been more different, in summer-time they now meet along shores and islands almost all the way to the North Pole. Amazingly they have even interbred. It Is a remarkable story of how bears, ever intelligent and resourceful, are adapting to a warming world.

Botswana's elephants are doing very well, too well perhaps. People are worried that too many elephants will damage their fragile desert home and have suggested that up to 60,000 should be culled. Researcher Mike Chase studies ancient elephant migration routes - he has tracked them across vast deserts, desolate salt pans, and Angolan minefields. Now he thinks he has a plan that could safeguard their future.

Multi-award-winning writer Robert Macfarlane sets out on a journey to explore the unexpected landscapes and natural history of Essex, revealing that there is far more to the county than the stereotypes of white stilettos and boy racers. Macfarlane spends a year travelling the county's strange and elemental landscapes of heavy industry, desolate beaches and wild woods. He encounters massive knot flocks over the Thames, peregrine falcons at Tilbury Power Station, water voles within sniffing distance of the municipal dump, deer rutting in earshot of the M25, barn owls, badgers and bluebells in Billericay as well as a large colony of common seals.

Deep in the rainforest of Central Africa lies an elephant oasis - a remarkable place that holds the key to the future for Forest Elephants. Over the last 20 years, Andrea Turkalo has been studying these enigmatic giants, getting to know over 4,000 intimately. She has begun to unravel the secrets of their complex social lives and the meanings of their unique vocalisations. New acoustic research is shedding light on the many mysteries that still surround forest elephant society. Will these endangered elephants finally speak out and tell Andrea what it is they need to survive?

A real-life drama about a family of chimps trapped in a lost world. They live in a deep and ancient forested gorge that runs though the African savannah and for fifteen years it has been cut off from the rest of the jungle, leaving the chimps imprisoned. Here, they face a daily life-or-death dilemma: whether to leave the safety of the gorge and venture into the predator-ridden savannah to find food, or face hunger. There's now only twenty of them left and as Brutus the alpha male loses his grip, can the family hold it together or is time running out for the Kyambura chimps?

For the first time, and through the eyes of two special mountain lion families, the true nature of North America's big cat can finally be revealed. Set in Wyoming's spectacular Rocky Mountains, the dramatic story of two mothers struggling to raise their kittens is helping scientists rewrite our understanding of these elusive predators. This is mountain lions up-close, in-depth and more intimate than ever before.

The slow loris is the real-life gremlin, extremely cute but with a venom that can kill. Now it's also a YouTube superstar with millions of hits. Dr Anna Nekaris travels to the jungles of Java to solve the riddle of its toxic bite, but a shocking discovery awaits.

Welcome to the Penguin Post Office, a little bit of Britain in the heart of Antarctica. Inside, the post office has everything you'd expect; a postbox, stamps, postcards and some dedicated staff. Outside, things are a little bit different. Neighbouring the post office are 3,000 gentoo penguins. They are there to raise a family but their lives are far from picture postcard as adultery and robbery are rife. The post office and its penguins attract thousands of visitors. Whilst they come and go, the penguins must keep up with daily chores to ensure their chicks make it to sea before the Antarctic winter starts to bite.

Impalas move with the great migration on the Serengeti plains of Africa. A new fawn is on his way, but so is danger for the herds.

The billfish are the biggest, fastest, and most dangerous gamefish in the sea. All have captured man's imagination like few other creatures, whether it's the graceful sailfish, the menacing swordfish or queen of them all, the marlin, immortalized by Hemingway in 'The Old Man and the Sea'. Marine biologist and film-maker Rick Rosenthal has travelled three oceans in his attempt to capture them all on film, and in doing so has become a passionate champion for these endangered yet little-known ocean giants.

The trials and tribulations of a sea otter pup growing up on the coast of California. The Californian Sea Otter is one of the rarest, and cutest, animals in the world. So when a sea otter mum decides to have her pup amongst the yachts of a millionaires' marina it is a unique event. The mum must teach her baby how to dodge the boats and find the food in this busy harbour. However the arrival of a tough male sea otter signals disaster for the family. When mum is attacked, the poor pup is left on her own and must fight for survival.

Looking at the secret lives of the wildlife in one of Britain's favourite gardens. Shot by Charlie Hamilton-James, this film follows various animals, from the family of foxes that play after hours in the pleasure gardens, to the toads in the Italian garden and the badgers that clear up the tea rooms at night. Set against the background of the gardening year, these stories reveal life behind the scenes at Heligan.

Leonora is no ordinary orangutan, she is a pioneer. With her three year old son in her arms, she is about to set off on an epic journey back to the wild - the great ape escape. It is a long way from what she is used to. After being orphaned as a baby, she has spent the majority of her life in a rescue centre. She is leaving behind 600 other orangutans, all of whom are relying on her for their chance at freedom. If Leonora can make it, they could too.

Following the success of Helen Macdonald's bestselling novel of the same name, H is for Hawk: A New Chapter is an intimate and personal journey. After the loss of her father, Helen trained the hardest bird in falconry, a goshawk. The cathartic experience helped her to grieve and now she is ready to do it again, but this time she hopes it will be her wings to somewhere new. In this beautiful and moving film, Helen trains a new bird and follows a wild goshawk family at the nest, getting closer than ever before to these fiery eyed birds of prey.

Africa's largest herd of elephants and a fearless pride of young lions come face to face in an epic fight for survival. Rarely do their worlds collide, until now. This is no chance conflict; nature has played its part. Drought has weakened the elephants and the lions are desperately hungry. The dawn of the giant killers has arrived.

Many years ago lions thrived in the deserts of Namibia's Skeleton Coast, until they were exterminated by man. Six years ago maverick biologist Flip Stander discovered a tiny remnant population alive and well in nearby mountains, and started to study them. Their numbers have grown and they are now returning to the desert in increasing numbers. But if these lions are to continue roaming here, Flip will have to persuade local people that these lions are worth more alive than dead.

Ernest Thompson Seton rode into the wilds of New Mexico just before the turn of the century to kill a wolf named Lobo. The book he wrote inspired many generations of naturalists.