The end-Paleozoic witnessed the most devastating mass extinction in Earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors.

Long before dinosaurs appeared Earth was shaped by a vast and unfamiliar world known as the Paleozoic Era Fossils from this time reveal early experiments in life including strange marine creatures ...

Washington, D.C.–Surprising new research shows that, contrary to conventional belief, remains of chitin-protein complex–structural materials containing protein and polysaccharide–are present in ...

Scientists offered a strong link Thursday between the "Great Dying," when most life on Earth was wiped out 250 million years ago, and a massive asteroid strike in what is now the ocean near Australia.

Power up the WHAT IF time machine because today, you’re traveling back to witness the most radical changes ever known in Earth’s history. You’ll watch our planet give birth to strange new animals and ...

Hundreds of millions of years ago, in the middle of what would eventually become Canada's Yukon Territory, an ocean swirled with armored trilobites, clam-like brachiopods and soft, squishy creatures ...

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The original plans for New York City’s Central Park included a Paleozoic Museum at 63rd Street and Central Park West, which would have displayed life-size concrete models of dinosaurs placed in ...

Hundreds of millions of years ago, in the middle of what would eventually become Canada's Yukon Territory, an ocean swirled with armored trilobites, clam-like brachiopods and soft, squishy creatures ...