Animals seem to appear in the fossil record fairly suddenly, a little over half a billion years ago. Yet rocks can preserve ...

In a discovery that reshapes our understanding of life’s origins, researchers at the Massachusetts Institute of Technology (MIT) have found new evidence suggesting that the first animals on Earth were ...

Even without body parts that allowed for movement, new research shows—for the first time—that some of Earth's earliest animals managed to be picky about where they lived. These creatures from the ...

We know there were animals during Earth’s chilliest era—but we still don't know what they look like. By Chris Baraniuk / Hakai Magazine Published Dec 23, 2022 6:00 PM EST This article was originally ...