樱桃视频

No tusks: Ancient walrus cousin looked more like a sea lion

Ancient reptile with 'ridiculously long neck' unearthed in Alaska

New dinosaur's powerful sniffer helped it track prey

One tough bite: T. rex's teeth had secret weapon

An asteroid didn't wipe out ichthyosaurs 鈥� So, what did?

Unexpected step: Snake ancestor had four feet

Oldest animal sperm lasted 50 million years in Antarctica

Cousin of velociraptor had feathers, wings

Dinosaur egg treasure trove found in Japan

Rare fossils of 400-million-year-old sea creatures uncovered