Extinction and origination patterns change after mass extinctions

Scientists at Stanford University have discovered a surprising pattern in how life reemerges from cataclysm. Research published Oct. 6 in Proceedings of the Royal Society B shows the usual rules of body size evolution change ...

Surprise at fossil discovery made in Tanzania

Ancient animal tracks dated almost two-million years old have been unearthed accidentally by Heriot-Watt University scientists from the Lyell Center in Edinburgh.

450-million-year-old sea creatures had a leg up on breathing

A new study has found the first evidence of sophisticated breathing organs in 450-million-year-old sea creatures. Contrary to previous thought, trilobites were leg breathers, with structures resembling gills hanging off their ...

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