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    Is Poaching Causing Elephants to Evolve Without Tusks?

    Spotting evolution can be trickier than you might think. Take African elephants. Usually they boast massively overgrown (and ever-growing) teeth—their tusks. For male elephants, these are weapons in sexual competition, but all elephants also use their tusks to scrape bark off trees, uncover roots, and dig for water during dry spells. Humans have their own […]