Watch them make their grand debut on exhibit. Sumatran tigers are critically endangered, with only about 150-250 left in the wild.

It's not all fun and games at the zoo. Here's how baby gorillas learn how to forage for food on their own.

These 6 southern white rhinos are out on exhibit for the first time since their arrival 3 months ago, and need a little help to acclimate to their new surroundings.

You can also see the ants' underground nest at the Children's Zoo at San Diego Zoo, something you wouldn't be able to see in the wild.

It's panda birthday week at the San Diego Zoo.

Zookeepers at the San Diego Zoo integrate Jewel, an Asian elephant with some health issues, into the Elephant Odyssey exhibit.

See how the San Diego Zoo Safari Park manages some of its larger residents.

He does all the heavy lifting - literally.

Can you guess what it is? Learn all about these agile hunters found in Africa, which can reach top speeds of 35 mph.

Get to know this litter of piglets from mom Tulia and dad Legolas, and learn all about this species from Africa.

See what zookeepers have learned about these different animals since spending more time with them.

Meet 3-week-old Kupatwa, the newest member of this Schmidt's Guenon troop, and his mom Bebe.

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

See Monroe having the time of his life at his 2nd birthday party.. zipping around the grounds, eating popcorn, and wrestling with his buddy Frank.

See why zookeepers are excited about these shaggy creatures.

See how a famous panda celebrates his third birthday.

At twelve weeks old, these cubs are highly active and already have strong personalities.

Watch as Harriet's four-day-old calf is introduced to some gazelles and the rest of the giraffe herd at the San Diego Zoo.

You've probably heard of an albino - but this all-white monocled cobra is a little different. Learn how leucism differs from albinism.

That's a lot of lorikeets! See what it's like to be totally immersed in this exhibit during a nectar feeding.

This social species, found throughout Asia, live in large family packs such as this one.

Introducing the cubs to dad is the final step to bringing the whole pride together.

A budding sense of adventure is getting him into all sorts of trouble.

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