File - Researchers find comparatively little blood from zebras in tsetse flies, even though the zebra has a thin coat.
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Zebras have stripes to deter the tsetse and other blood-sucking flies, according to a fresh bid to settle a debate that has raged among biologists for over 140 years.Do the stripes radiate heat to keep the zebra cool?The new finding proposing the stripes as fly repellent, however, was intriguingly thrown up by lab experiments in 2012 that showed how blood-feeding flies shun stripy surfaces and prefer instead to land on uniform colors.The team found a geographical overlap between zebras and the two groups of biting flies, Tabanus and Glossina, that feed on equid species, which explains why zebras would need a shield against this pest.
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