The dichromatic stripes could reduce the ability of bloodsucking flies to target zebras
This is why zebras have stripes - latest science discoveries

The origin of the typical stripe pattern of zebras has puzzled scientists for decades. Now, a new study suggests an interesting theory: the stripes may be a defense mechanism against bloodsucking parasites.

Using video analysis, the researchers investigated the behavior of tabanid horse flies around zebras and horses. Interestingly, they discovered that the flies failed to slow down on approach to zebras, which is essential for a successful landing.

Basically, the flies just miss the zebras or bump into them however, this did not happen for horses. The dichromatic stripes reduced the ability of flies to land on their target. This suggests that the zebras evolved to have their typical skin pattern in order to avoid biting insects and this has implications for the horse industry.

Read the full story: University of Bristol
Scientific publication: PLOS ONE