Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. While humans are Earth’s most dominant animal species, it’s ...
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Why Do Rodents Flourish? A Human-Like Thumb Helps
The legions of squirrels breaking into backyard bird feeders benefit from a surprising trait developed over millions of years—tiny hands with four claws and a human-looking thumbnail. This combination ...
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