extinctions
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How The Last Woolly Mammoths Met Their Demise On A Remote Arctic Island
The last mammoths to stomp on Earth lived on Wrangel Island in the Arctic Ocean. This isolated population lived for thousands of years after most mammoths were gone, but when extinction finally came, it happened quickly. New evidence may finally explain what happened to these stubborn holdouts.
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A Cosmic Explosion Left Radioactive Fallout At The Bottom Of The Ocean
Several million years ago, a series of nearby supernovae explosions lit up the sky, rained radioactive particles down on our planet and might have kickstarted a major climactic shift. That’s according to a pair of studies published today in Nature, which link radioactive debris spread across the seafloor to cosmic fireworks hundreds of light years…