Zebras may have evolved their distinctive black and white stripes to interfere with flies’ vision.
A team of Japanese researchers recruited six cows and gave them each black-and-white stripes, black stripes and no stripes. They took photos of the cow’s painted right side, counting the number of bites as they happened and watching how the cows reacted.
While unpainted cows and cows with black stripes endured upward of 110 bites in 30 minutes, the black-and-white cows suffered fewer than 60 in the same period, researchers found.
More » Cows painted with zebra-like striping can avoid biting fly attack – PLOS ONE