2 weeks ago
New research suggests animals may have evolved up to 200 million years before they first appear clearly in the fossil record, challenging a key assumption scientists have used to estimate when animal life began.
A study led by the University of Oxford suggests the earliest animals may have existed hundreds of millions of years before the first unmistakable animal fossils appear. The findings, published Oct. 2 in Science Advances, indicate that animals...
English (US) ·