This brother-sister pair couldn't be any more different.

An older female kangaroo was starting to move slower than others in her mob, so keepers did a scan and discovered she had injured her spine.

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

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.

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

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

Watch the newest member of San Diego Zoo's reindeer herd explore the exhibit with mom.

Find out what where she gets her unique name.

Also, see what goes on during the fledging stage with the beautiful white fronted bee eaters at the San Diego Zoo.

At 12 weeks old, the cubs are very energetic and already showing unique personalities.

The curious baby wallaby is ready to explore on his own after being in and out of his mother's pouch for more than half a year.

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.

Watch the newest member of San Diego Zoo's reindeer herd explore the exhibit with mom.

Watch the newest member of San Diego Zoo's reindeer herd explore the exhibit with mom.

The curious baby wallaby is ready to explore on his own after being in and out of his mother's pouch for more than half a year.

Watch the newest member of San Diego Zoo's reindeer herd explore the exhibit with mom.

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.

Can you spot all fifteen species of birds on display?

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

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

Also, see what goes on during the fledging stage with the beautiful white fronted bee eaters at the San Diego Zoo.

Watch the newest member of San Diego Zoo's reindeer herd explore the exhibit with mom.

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.