Zebras’ stripes evolved to thwart blood-sucking flies
By Steve Casimiro, Adventure Journal on February 13th, 2012
So say a group of researchers from Hungary and Sweden, adding a new theory to the reason for their black-and-white pattern. The scientists discovered polarized light reflects horizontally off black and brown horses, which attracts horseflies. They then tested a white horse and a zebra and found that the zebra pattern was the least appealing to the bugs. The final test? They built life-sized statues of all four, covered them with glue, and counted how many flies were caught. The zebra had the fewest.
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