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The American robin summers throughout most of North America. With these guidelines, you should have no difficulty spotting one.

Want to where and when you doctor received their medical license? A little digging is all it takes.

Hint: it's a species that hails from Africa, where its name derives from.

Did you know the Rodrigues fruit bat (a.k.a. "flying fox") has a wingspan of three feet?

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

One foal at a time! The Przewalski's Horse went extinct in the wild in the 1980s, so a number of zoos started breeding programs with the intent of releasing them back into their native habitat.

Five facts you probably didn't know about this "merry, merry king of the bush."

Ever hear of a Satanic Leaf-Tailed Gecko? How about a Rhacodactylus? Learn about some of the strangest creatures on the planet.

Meet a pair of firmly bonded gibbons that couldn't be more different.

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

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.

Weighing 2,000 pounds and with characteristic mustache-shaped horns forming what's known as a "boss," this is one tough animal you wouldn't want to mess with.

There's plenty of fascinating facts to learn along the way.

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

Males can weigh more than 2,000 pounds!

Capuchin monkeys have the largest brains of all New World monkeys. Meet all the members of this group and learn what their roles are.

When you're only two weeks old and have this much energy, everything is an adventure.

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.