The Zoo Episode Rating Graph

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.

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 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.

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.

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.

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.

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.

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.

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.

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 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.

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.

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.

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.

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.

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.

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.