An ancient fossil bed in Mongolia preserves tiny organisms in remarkable detail. Some even have structures resembling embryos ...

Leo Youngdahl was hoping to find one of his favorite fossils when he turned over a rock at a Nebraska park. Instead, he ...

Animals seem to appear in the fossil record fairly suddenly, a little over half a billion years ago. Yet rocks can preserve microscopic life in remarkable detail and still contain no animals, even ...

The sudden appearance of complex animals has led scientists to argue that animals must have a “hidden history”, a period in ...

The research, published in the journal Science Advances, suggests animals may have originated deep in the Neoproterozoic Era.

Researchers may have uncovered the reason why some of Earth's earliest animals were commonly preserved as fossils—even though ...

Add Yahoo as a preferred source to see more of our stories on Google. A reconstruction of the Jiangchuan biota, an assemblage of early animals represented by fossils from a newly discovered fossil ...

The animal kingdom may have started its journey on a much earlier Earth than scientists once thought. Long before ...

A pattern resembling snake scales caught six-year-old Leo Youngdahl’s eye during a fossil hunt in Nebraska.

If you happen to be right-handed, you may be able to trace the origins of that trait to a wormlike animal that lived about 550 million years ago and had a tendency to bend to the right.Spriggina ...

The oldest known animal fossils are about 574 million years old, but the fossil record is too sparse to reveal when Earth’s ...