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The birth of a little blue penguin causes a sensation at the Bronx Zoo. The veterinary team scrambles to figure out what is wrong with Snowball, a beloved snow leopard. And the exhibits team designs a home for the newly arrived blue iguana.

The squirrel monkeys play hard-to-get with the Children's Zoo's keepers. A pair of Komodo dragons meet for the first time, with explosive results. And the Inca terns prepare for their first big flight.

The brown bears keep tearing up their exhibit, leaving zoo staff scrambling for a solution. Armani the aardvark gets treated for a tooth infection which has dampened her enthuiasm for digging. And, a group of burrowing owls prepare to move.

Peaches, a 2-month-old warthog, charms his keepers while training to become an animal ambassador; a nervous one-horned rhino adjusts to her new exhibit; Willow, a red panda, shows signs of being pregnant.

A trio of new penguin chicks are introduced to the pool for their first swim; family dynamics change when the mandrill monkey troop welcomes a new baby; a pair of king vultures are prepped for their big debut at the Queens Zoo.

The ingenuity of zoo staff is put to the test as they devise a treatment for a newborn snow leopard cub struggling to walk. A group of surprisingly adorable Rodrigues fruit bats are trained for a big move.

Dave, a kangaroo suffering from chronic arthritis, tries cryotherapy. A large group of rambunctious gharials are trained to patiently wait for their food. And, a tiny pygmy marmoset gives birth to an even tinier baby.

A journey to eastern Africa is undertaken to return thousands of toads to the wild that were rescued from extinction. Also: A giraffe tries out a new piece of equipment; the avian department works to save the lives of millions of birds.

A markhor goat gives birth to Andre, the biggest baby of the year; a baby bat requires human care before it can be reintroduced to its colony; confiscated lizards destined for the pet trade require urgent medical attention.

A pregnant African wild dog has the staff anxiously preparing for the big day. Zoo director Jim Breheny steps in to help a keeper learn how to handle a golden eagle. And, a new tree in Jungle World gives the gibbons a new world to explore.

When keepers introduce two tigers as potential mates, the process proves bumpy. A pair of African porcupines arrive at the zoo, requiring delicate handling. And a pregnancy check on a 3,000 pound rhino necessitates some highly specialized equipment.

Zoo staff face unexpected setbacks weaning a bright sea lion pup off her mother's milk. The bird team steps in To support a rejected curassow chick. And, a squirrel monkey pays a visit to the dentist.

The Zoo's huge male sea lion is in rut, and staff need to move the young males before he becomes territorial. The vet team come up with an ingenious solution to repair Dinky the Flamingo's broken ankle. And feeding a rock python proves challenging.

The zoo's medical team must perform critical surgery on a bison calf born with a bowed leg; three lynx kittens are ready to explore their exhibit

A tomistoma, a freshwater crocodilian, stops laying eggs and a team of keepers scrambles to treat her. The veterinary team has to rescue a baby antelope that isn't getting the care it needs from its mother. And Mert the Goose takes a field trip.

Surgery on a silverback gorilla's broken canine reveals a more serious medical issue. Is love in the air for two Birds of Paradise, Glory and Holiday? A confiscated black-breasted leaf turtle is introduced to eligible bachelorettes. And, dozens of venomous tarantulas keep the staff on their toes.

To help love bloom between two kiwis, zoo staff build an elaborate hut into which they introduce a pair of potential mates. When a King Cobra arrives at the zoo, keepers have their hands full training him to move from the exhibit to a holding pen.

Seven "Little Blues" join the penguin exhibit and are quick to mingle with the rest of the colony. When a honey-loving grizzly slows her step, the staff grows concerned. A turtle can't seem to get along with the alligators, and a nyala calf is born.

After more than 100 venomous snakes are taken from a private home, it's up to the zoo to care for them. Two Pronghorn fawns make their debut, but problems arise that have keepers concerned, while a device is built for a Red River hog needing a challenge.

A popular sea lion falls ill after ingesting a foreign object. The avian team devises a plan to increase the cock-of-the-rocks population. Endangered snakes are coupled for breeding, and Andean bear cubs meet their fans.

The zoo opens an endangered turtle species facility, while Malayan tigers Suhanna and Rimba struggle to breed, because Rimba seems disinterested. Needles the porcupine gets a new mate, and the Guar herd eagerly await the arrival of new calves.

A trio of rare Dhole canines are prepared to make their cross-country journey to the zoo, and keepers anxiously await their arrival. A tinamou chick must be hand-reared, while a specialized tool is welded to extract a tusk from a charming Babirusa.

Two sickly newborn fawns form an unbreakable bond while they are hand-reared by staff. Leopard Khazo gets a surprise that enhances her life, and tensions run high as the reptile staff attempts to collect blood from Cuban crocs.

A trio of abandoned puma cubs arrives at the zoo, while the staff grows concerned that Ella, the oldest rhino, is not acting herself. Meanwhile, a Caribbean flamingo is born at the zoo after nearly two decades, and Otto the stallion makes his debut.

A charismatic ostrich named Olga works to be reunited with her flock. Buster the squirrel monkey is introduced to the Zoo's troop of feisty females. A functionally extinct species of turtle finds new life and everyone's favorite warthog is back.

A gorilla must undergo a critical root canal to fix its tooth problem; a red-crested turaco chick fledges the nest; a pair of puma cubs travel to their new home at the Queens Zoo.

A snow day means playtime for the animals and hard work for the zoo staff.

The zoo anxiously awaits the arrival of a snow leopard called K2's fourth cub. The staff is pleased when a pair of Andean condors embrace their new enclosure, while a squirmy binturong fights his annual vaccination.

A pair of rescued Mang Mountain pit vipers move into a lush new exhibit

The zoo staff works to build a relationship between a pair of Asian elephants with very different personalities; vets treat an ocellated turkey chick's foot condition

Max the camel faces new challenges as he ages. The zoo prepares to give an injured turkey vulture a permanent home, but after healing, there may be a change of plan. Willow the red panda gives birth to two baby cubs.

The Zoo takes audiences on a first-ever, in-depth look behind the scenes at the Bronx Zoo. With full access to its 265-acre campus, located just 10 miles from Times Square, we shine a light on a world of more than 6,000 animals and the 500-plus people who care for them.

An okapi called Magani is ready to breed and is paired with veteran Kweli to learn the ropes. Lola the blue iguana plays hard-to-get when introduced to a potential mate, and anteater Velcro shows off her talents with a new tool.

A rowdy, young markhor is injured and vets must treat his infected hoof. The TAB staff head to Manhattan to rescue a wallaby living in an apartment, while a fruit bat discovers how to spread her wings, and a trio of alligators move into their summer home.