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

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

To help love bloom between 2 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 to train him to move from the exhibit to a holding pen.

Leo the snow leopard is having trouble eating because of a broken canine. The bird department works feverishly to restore a beehive for the bee-eater birds. And Ambassador Center staff work with an adorable Fennex fox named Charlie.

Zoo staff journey to east Africa to return to the wild thousands of toads they helped rescue from extinction. Utu, the test-pilot giraffe, tries out a new piece of equipment. And the bird department works to save millions of birds.

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.

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 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 enthusiasm for digging. And, a group of burrowing owls prepare to move.

Trust and experience are put to the test when an elephant requires delicate veterinary treatment from her keepers. Endangered pink pigeons need all the help they can get to produce offspring. And Monty the adorable otter needs to visit the dentist.

The slow loris has a tiny window for breeding, so staff anxiously help a potential pair connect. The veterinary team develop ground-breaking techniques to treat the stoic penguins. And an okapi with a limp gets a helping hand.

The last polar bear in NYC is showing his age so staff make sure he gets all the attention he needs. A trio of red ruffed lemurs prepare for their debut. And, a new exhibit is constructed for the hellbender, a giant amphibian with a bad reputation.

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.

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

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.

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? And, dozens of venomous tarantulas keep the staff on their toes.