About 66 million years ago—perhaps on a downright unlucky day in May—an asteroid smashed into our planet.
The fallout was immediate and severe. Evidence shows that about 70% of species went extinct in a geological instant, and...
A fossilized colony of small burrowing reptiles that lived some 250 million years ago was recently found in South Africa. It's the first time that the Procolophon trigoniceps, which lived in the lowlands of what was...
