The now-extinct giant beaver once lived from Florida to Alaska.
From reviving extinct species to hunting for dark matter, can a single scientist transform biology--and our lives?
It's been gone since 1983, but the Lazarus Project has brought it back to life.
Yevgeny Salinder found an extraordinarily well-preserved fossil in northern Russia (complete with its 1.5-meter-long penis intact!).
Scientists watch evolution at work
2011 is shaping up to be a great year for science. Here's what to look forward to
Researchers at Penn State University announce they are close to cracking the entire DNA set for the now-extinct woolly mammoth
A 400,000-year-old fossilized skull could provide a missing link
The first sequencing of a complex protein from an extinct species
It's just like Jurassic Park, except for real, and also with several key practical differences!
It's a fact of the archaeological record: Modern humans survived and Neanderthals did not. Why? And what does it teach us about our own survival?
The puzzling fossil is intermediate in size between two species
How the World Wide Web has changed science
Bird-bone flute hints that Paleolithic humans banded together to the demise of Neanderthals
Scientists in Japan have been able, for the first time, to successfully clone a mouse from a blood sample drawn from a living donor's tail.
Around the world, scientists are risking their lives to retrieve seeds destined for a massive vault near the North Pole. Their work just might save mankind