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Press Release 10-244

What Triggers Mass Extinctions? Study Shows How Invasive Species Stop New Life

Collapse of Earth's marine life 378 to 375 million years ago holds key

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Illustration showing the ocean during the Devonian.

The ocean in Devonian times: is past prologue in biodiversity collapse?

Credit: University of Michigan Museum of Paleontology


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Photos of a bivalve on upper right, two brachiopods on bottom, and crustacean on upper left.

Clockwise from upper right: bivalve; two brachiopods; crustacean from the distant past.

Credit: Alycia Stigall


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Photo of scientist Alycia Stigall on the right and a computer monitor on the left.

Scientist Alycia Stigall studies fossils that tell us about biodiversity loss today.

Credit: Ohio University


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