Jennifer Viegas

The People's Republic is experiencing a giant panda baby boom.

Signs of injuries detected in pachycephalosaurs' skulls offer evidence the animals head-butted in violent battles.

Bats, like Batman, successfully combine work with courting sexy potential mates.

Sharks' skin turns to black when exposed to the sun's rays. But the animals don't get skin disease.

Real-time information about basking sharks swimming off the coast of Scotland is now available online.

The remains of several new toothy shark species, with at least three dating to 270 million years ago, are found in the desert state.

The Greenland shark is no Ryan Lochte — thanks to frigid waters, this shark swims at top speeds of only 1.7 miles per hour.

There's one place where sharks rule, living out their lives in tropical splendor in a shallow, blue bay.

A spineless creature experienced two doublings in DNA, triggering the evolution of humans and other animals.

The death of the tortoise raises the question -- how can we save our endangered animals before it's too late?

Does man's best friend really enjoy a ride on a surfboard or are they terrified?

When creatures made their way onto land for the first time, it wasn't pretty.

It's been debated for years, but researchers say they now have a definitive date of the crucifixion.

The three people suspected of making empanadas out of human flesh are not the only cannibals out there.

The carcass of the juvenile "Yuka" may have been cut up, eaten and then buried by ancient people.

Cold weather, not cold-hearted humans, may have caused the species' demise.

Experts grapple with the question, as unprecedented numbers of dolphins wash ashore.

Fear of humans is now a key factor that drives lion behavior.

Dogs may have a special adaptation to be sensitive to human communication.

Birdlike lungs and other factors may have allowed dinosaurs to grow to soaring heights.

The perfect weight gives each animal the best chances of survival.