The former circus elephant was first moved to San Diego Zoo in 2013, but sadly passed away in March of 2017 at an early age. See the sweet moment Mila made a friend after spending many years alone.

The former circus elephant was first moved to San Diego Zoo in 2013, but sadly passed away in March of 2017 at an early age. See the sweet moment Mila made a friend after spending many years alone.

At one time, they roamed all throughout the southeastern U.S., but now the red wolf is the most endangered canid in the world.

Zookeepers are hoping they hit it off.

Why sharks need vitamins to supplement their diets - and how their handlers get the job done.

At the San Diego Zoo, zookeepers and researchers constantly gauge the pandas' behavior to see how well they're doing.

It's the march of the guinea fowl as this feathered flock gives some zoo visitors an unexpected hello.

Friends can come in all shapes, sizes, and sometimes, even different species! Learn about Ruuxa the cheetah and Raina the dog, who after a medical emergency became an inseparable pair.

Learn all about these tiny tortoises from Madagascar.

He's a little more confident than graceful, and a budding sense of adventure is getting him into all sorts of trouble.

Learn all about San Diego Zoo's expansion where you can be immersed in thousands upon thousands of butterflies.

Sometimes the koala joeys play switcheroo on their moms.

The species practices 'alloparenting,' which means every family members participates in raising the infant.

Aussie native Olivia Degn introduces you to some kangaroos and wallabies that people have traveled thousands of miles just to see.

From a giant, edible "50" to various fruit snacks... see how the keepers helped him celebrate his big day.

Decode the secret language of iguanas at San Diego Zoo's Anne and Kenneth Griffin Reptile Conservation Center.

It's uncharted territory for zookeepers, as this is the only Silverleaf Langer they've had to assist with rearing.

Researchers at the San Diego Zoo Institute for Conservation Research have hatched nine critically-endangered Grand Cayman Blue Iguanas.

Learn the differences between a pharmacy for animals versus one for humans.

How zookeepers target train animals and what it's used for.

Education specialist Luke Richmond explains this and more from the Aquarium of the Pacific.

They may have striped markings that resemble zebras, but they are more closely related to a different African animal.

Learn all about the largest, weirdest-looking slugs in North America.

Plus, meet a pair of mountain lions named Koya and Kima who were orphaned in the wild.