Early toehold on land
A five-toed fossil now holds the record for smallest, oldest foot ever found
By Stephen Ornes, 15:02 PM March 20, 2012
Life on Earth began in the water. But at some point in ancient history, animals dried off and started living on land, too. Scientists can't travel back in time — yet — to see when it happened, but they can get hints from fossils. Those are the remains of animals, plants and other organisms preserved in rock. Fossils are a window on the past, and they can help us understand how modern life began.
The discovery of an ancient, five-toed fossil offers new clues on when four-legged critters sta...
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