As a new elephant calf joins the herd, see how he learns about the social hierarchy.

Meet the newest member of this family and learn all about the world's largest rodent.

When most people think of Wyoming, they think of larger animals like bison, moose, and pronghorn - but there's another animal found only in this region that's incredibly important - the Wyoming toad.

Learn about the San Diego Zoo's collection of orangutans, western lowland gorillas, and bonobos.

This eagle was deemed "non-releasable" by a wildlife rehabilitator - so now he has a new, very important job.

In the course of such an introduction, it's normal to come out with a few scrapes.

This hippo calf is actually famous the world over for his "hippo ballet."

See what happens when Pygmy hippos and Wolf's guenons interact in one of the world's few mixed species exhibits.

One of the first orangutans to have open heart surgery is celebrating her sweet sixteen.

Follow along with lead keeper Jane Kennedy and see what it's like to work in this vast 1,800 exhibit recreating the African and Asian savannas. Also, learn all about the formidable Indian gaurs which always have keepers on their toes.

Follow along with a rhino keeper as she takes you on a tour of a one-of-a-kind, 1,800-acre exhibit recreating the African and Asian savannas.

Witness the moment panda Bai Yun's sixth cub entered the world.

Learn about one of the San Diego Zoo's rarest residents, the Amur leopard.

Get an up-close peek at an exhibit that recreates the natural granite kopjes of the African savanna, and its furry residents.

Meet giant panda Bai Yun's sixth panda cub, and see what benchmarks veterinarians look for in measuring its health.

Zookeepers and guests witnessed a rare live birth of a river hippo calf.

Meet a unique bear hailing from South America.

It's this gorilla mom's sixth baby boy.

Watch as Kima and Koya explore their brand new exhibit, expressing natural behaviors as they would in the wild.

The elephant herd at the San Diego Zoo is getting even bigger.

This species practices "alloparenting" - which means this baby is going to get passed around A LOT.

It's not often they get to enjoy such a sweet treat.

Despite a growth plate issue, this orphaned grizzly still manages to hold her own against her big brother, who's nearly 300 pounds bigger.

Ever hear of a Satanic Leaf-Tailed Gecko? How about a Rhacodactylus? Learn about some of the strangest creatures on the planet.