I just listened to a nice podcast on Scientific American on the evolution of zebra coloration. Horseflies misjudge landing on zebra patterns compared with solid grey or black surfaces, which provides evidence for why evolution came up with the black and white pattern.
Do not worry, it is just 3 minutes. Enjoy listening:
https://www.scientificamerican.com/podcast/episode/zebra-coloration-messes-with-fly-eyes/