Recent study by Tim Caro and UC Davis revealed the reason for one of the abnormality that has stumped scientists for years. Why zebras have stripes?
The scientists have noticed that zebras never attract biting flies and it seems that the reason for this is their stripes. So stripes saved zebras over centuries and it's a trait acquired through the process of evolution. Caro and Davis examined the correlation between the intensity of striping on areas of the body and the number of biting flies in the given region of the world and came up with this fascinating conclusion.
This may also explain the reason why tigers have stripes. They also live in regions full of biting flies.