For the many wondrous things humans can do, we can't fly on our own. But if we could, how big would our wings be? Of course, the answer depends on the person's size. But someone who's about 155 pounds ...
Bats have done something no other mammal ever has: the leathery-winged beasts evolved powered flight thanks to specialized membranes called patagia connecting their limbs and digits to the rest of ...
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