Over 500 million years ago, the Cambrian Period sparked an explosion of skeletal creativity. Salterella, a peculiar fossil, defied conventions by combining two different mineral-building methods.

A groundbreaking discovery of fossils has provided scientists with an unprecedented insight into a pivotal moment in Earth's history: the transition from rudimentary plant and animal life to the ...

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...

A stunning new fossil find from the Grand Canyon fills in some blanks from a time when evolution began experimenting with weird new forms. About half a billion years ago, life on Earth really started ...

Creepy collector she is not; Cooke's quest for canines, incisors, and molars is driven by a desire to better understand Earth's past. Give this intrepid paleontologist a fossilized tooth, and there's ...

A newly discovered stegosaur skull from Spain is offering rare insight into the anatomy and evolution of one of Europe’s most ...

One of three jawbones excavated from Thomas Quarry in Morocco that is 773,000 years old. - Hamza Mehimdate/Programme Préhistoire de Casablanca Fossils unearthed in Morocco from a little-understood ...

WASHINGTON — Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures that ...

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a fossil ...

Studies of tens of thousands of fossils from the La Brea tar pits in California have found no clear evidence of any of the species evolving in response to falling temperatures as ice sheets spread ...