Oops: Researchers say 3.7 billion-year-old ‘fossils’ are probably just rocks

Hunting for fossils is a difficult business in the first place, but the challenge is multiplied the farther back in time you're searching. Finding bones from a dinosaur that lived 50 million years ago is a cake walk compared to hunting for evidence of life from billions of years back.

A new analysis of supposed 3.7 billion-year-old fossils in Greenland reveals that the researchers who first announced the discovery may have gotten it all wrong. In truth, it seems the strange deposits found in...

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