Did you know all these crazy facts about horseshoe crabs?

Learn the difference between Reticulated and Rothschilds giraffes.

Learn what challenges keepers face with this routine exam.

Also, learn the challenging process behind what it takes to repopulate these toads in the wild.

It's a common misconception that leaf cutter ants eat leaves - but what they're really after is something else entirely.

Ivan Vicente of the U.S. Fish & Wildlife Service breaks it down.

Nothing seems to faze her - not even shark feeding time.

They're pretty much the ninjas of the lizard world.

This cousin of the Komodo dragon is actually quite common.

See how these super-sneaky Madagascar-dwelling lizards get their name.

Follow them as they travel around the world.

Both male and female Bighorn sheep have horns, but only the males' continue to grow as they get older.

Cute, cuddly red panda cub, Oolong, was born at about half the weight of a typical cub. Doctors soon realized his diagnosis of hyperthyroidism would mean lots of extra care and special treatment for his development.

At just over five weeks old, Cece, whose name means "playful monkey," is just starting out on the adventure of life.

Zookeepers at the San Diego Zoo weigh and measure new giraffe calf Obi.

Learn about efforts to re-establish this critically endangered amphibian back into southern California.

Both male and female Bighorn sheep have horns, but only the males' continue to grow as they get older.

A new birth is always cause for a celebration. But unfortunately for Oolong, the celebration had to be put on hold.

In the animal kingdom, one species stands head and shoulders above the rest. Learn all about the tallest land animals in the world.

Learn why, and more amazing facts about this unique species.

How this important step presents a unique challenge to zookeepers.

These cousins of Komodo dragons are so elusive, they were once believed to be extinct.

See how these super-sneaky Madagascar-dwelling lizards get their name.

Naturally, queens are entitled to their own space. So Coretta took it upon herself to claim an entire portion of the exhibit.