Tracks left by some of the earliest complex animals are giving new insights into how they experienced the world. New research ...

How ancient bryozoans may have looked. (Zhifei Zhang) The Cambrian explosion was one of the most dramatic chapters in the ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Cambrian creatures in a colorful explosion A cursory flip through any high school biology textbook will ...

A stunningly-preserved, half-billion year old fossil of a strange Cambrian creature could shift our understanding of how a sister group to vertebrates evolved, a new study suggests. The fossil, ...

Researchers studying ancient rocks from the late Ediacaran period uncovered a fossil evidence that complex animal groups, including the closest known invertebrate relatives of humans, may have existed ...

Scientists have revealed the most anatomically complete specimens of Cambrian trilobites ever found in stunning 3D images. The pristine fossils, which date to the Cambrian period (541 million to 485 ...

(CNN) — Paleontologists have discovered remarkable fossils in the Grand Canyon that reveal fresh details about the emergence of complex life half a billion years ago. The newfound remains of fauna ...

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Five hundred million years ago, tacos existed. But they weren’t corn or flour; they were the hard-shelled coverings on a now-extinct sea creature, Odaraia alata. According to new research, the ...

This animation created for Evolution: "Great Transformations" depicts creatures whose fossils were found at the Burgess Shale. As alien as these creatures seem, they are also surprisingly familiar.