The lowly mole rat, a burrowing rodent, often shares its underground home with natal droptail ants, insects whose bite injects victims with formic acid, a chemical that should cause intense burning and stinging. But the chemical doesn’t affect most mole rats, and evolutionary scientists recently conducted a study, published May 31 in Science, to learn why. What they found fits

Source: Mole rat defies natural selection – Science & Tech – WORLD

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