The Zoo: San Diego

A baby klipspringer is born and miraculously nursed back to health. Then, the California condor team goes to unbelievable lengths to save this highly endangered species, and Joanne the gorilla turns 5 years old. Plus, the staff works together to unravel the mystery of why the rare Mangshan pit vipers are having spinal issues.

Hunter the koala is ready for a mate, but the female koalas may not be ready for Hunter. Jaws the Galapagos tortoise isn't feeling well and the zoo staff works to bring him out of his shell. Plus, for the first time, the Safari Park has two baby giraffe calves that need to be hand-reared simultaneously.

There will be no peace in the world for the hamadryas baboons until Impo finds his mate; luckily, the San Diego Zoo keepers have a plan. Two young cheetah cubs train to become animal ambassadors with the help of their experienced canine guide, Yeti. Plus, it's time for the Safari Park team to release a group of burrowing owls into the wild.

Safari Park keepers prepare Aria the rambunctious black rhino for her new life on the open African Plains exhibit. Zoo staff cares for 15-year-old legend M'bari the lion and his mate, Etosha. A vulture chick learns to eat from a surrogate puppet, and Yara the sassy cassowary grows up and moves into her own digs.

The zoo says goodbye to beloved pandas Bai-Yun and Xiao Liwu as the mother and cub prepare to return to China. Tembo the retired "Hollywood" elephant tries traditional Chinese medicine for her arthritis. The Butterfly Jungle gets colored for the season, and Bacari joins the zebra herd in Safari Park.

After six years away, Mek the tiger returns home to the San Diego Zoo to enter "retirement." Two shy tree kangaroos, Spike and Polly, meet for the first time; will they be a breeding match? And, with the Children's Zoo closing for construction, the keepers have to move over 100 animals, including a herd of reluctant goats.

Safari Park keepers say goodbye to two elephant brothers off to start a new herd at a Texas zoo. The zoo vets design a custom shoe for Felix, an excitable three-toed Baird's tapir. Plus, two African penguin chicks grow up and get ready to join the colony.

Mkhaya, the youngest baby elephant in the Safari Park herd, learns to use her trunk. It's breeding season for Andean bears -- will Alba become a first-time mom? The vets examine Mandazzi the gorilla and assist gorilla heart research. Plus, we join Jeff the snake chaser on the trail of the elusive coastal patch-nosed snake.

At the Safari Park, white rhino Victoria is pregnant with a very special calf -- one that could hold the key to saving a species from extinction. Connor the bone-loving Malayan tiger has tooth trouble and the vets step in to help. A new bird keeper learns to feed the rare and somewhat intimidating shoebill. Plus, polar bears get a chance to exercise their hunting instincts on live prey.