For years, scientists have debated the evolutionary reason behind a zebra's stripes. Are they: a. Costumes for courtship? b: Camouflage to confuse lions and other predators? c: A natural way to cool off? d: Bug repellent?
If you answered "d," you'd win the prize, at least in the eyes of Tim Caro, a biologist at the University of California at Davis. He and his colleagues report in Nature Communications that the geographic range of zebras and other horsey species with stripes overlap nicely with the range of bloodsucking flies, according to NBC News.
"It settles the question pretty well, in terms of trying to understand the evolution of striping in horses, zebras and asses," Caro told NBC News.
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