Life
Early humans began wiping out elephant relatives 1.8 million years ago
Elephant-like species started going extinct faster when early humans evolved, and the rate of extinction rose even higher when modern humans appeared
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Elephant-like species started going extinct faster when early humans evolved, and the rate of extinction rose even higher when modern humans appeared
Experiments with a robotic dinosaur suggest feathers may have evolved to startle prey into fleeing from hiding places, a strategy used by some modern birds