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

Share in this moment of celebration and relief.

Nindiri and Guapo may have some things to work out first.

In the wild, when animals emigrate into a new troop, there's often conflict.

Meet Gabi and Chewy, two of San Diego Zoo's more interesting monkeys.

A neonatal assistive care unit provides care for an 11-day-old female ring tailed lemur until she's able to be reunited with her mom.

The neonatal assistive care unit at the San Diego Zoo watches over an 11-day-old female.

In the wild, when animals emigrate into a new troop, there's often conflict.

The sun conure, a parrot species, is very social and has some fascinating features. Distinguishing between males and females, however, may come as a challenge.

The neonatal assistive care unit at the San Diego Zoo watches over an 11-day-old female.

A neonatal assistive care unit provides care for an 11-day-old female ring tailed lemur until she's able to be reunited with her mom.

The neonatal assistive care unit at the San Diego Zoo watches over an 11-day-old female.

The sun conure, a parrot species, is very social and has some fascinating features. Distinguishing between males and females, however, may come as a challenge.

The giant otter found a friendly female companion to help him explore his new environment after being transferred from a rehabilitation center.

It's easy to see where their sunny title comes from.

Learn all about where these funny-looking

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

How zookeepers select pairs for breeding to then release the eggs into the wild.

Meet Gabi and Chewy, two of San Diego Zoo's more interesting monkeys.

He's had quite the journey.

How zookeepers select pairs for breeding to then release the eggs into the wild.

The giant otter found a friendly female companion to help him explore his new environment after being transferred from a rehabilitation center.

See the process by which geneticists extract DNA from a blood sample.

Check in with a female joey and see what her life is like and what's in store as she grows up.