A fossil with eyes on stalks and a clawed trunk, the Tully monster has defied classification for over 70 years—and still has ...

The conodont Wurmiella excavata was said to have had razor-sharp structures that processed prey from left to right, rather ...

"Animals, plants, seaweed, and foraminifera are all eukaryotes. We were interested in studying this foraminifera because it thrives in a very similar environment to Earth during the Precambrian, a ...

Animal life, emerging nearly 600 million years ago, showcases incredible diversity and unique traits. Unlike plants, animals are heterotrophs, relying on consuming other organisms for energy. From ...

Fossils Solve a Nervous System Mystery in Molting Animals Learn about the wide-ranging Ecdysozoa group of animals and how scientists solved the curious case of their nervous systems' structure.

New research suggests complex life on Earth began 1.5 billion years earlier than previously thought. We review the top origin of life theories.

Newly discovered fossil records hint that mold-like unicellular organisms — the common ancestor to all complex life on our planet — arrived over a billion years earlier than previous estimates.

A team of researchers challenged the belief that complex life forms first emerged on Earth 635 million years ago, saying life may have existed 1.5 billion years before.

Animals Are Older Than We Thought Season 6 Episode 13 | 11m 57s | CC What are animal-like fossils doing in rocks a billion years old, and what does that mean for our understanding of their ...

A multi-national group of scientists was scouring over 500 papers on ancient cyst-like organisms, trying to understand a strange group of fossils. But it was—of all things—a YouTube video that ...

Turns out we might be very wrong about how life arose on Earth. For decades now, the prevailing scientific theory explaining the Precambrian Avalon explosion — in short, the era dating back to ...