A zebra has black-and-white stripes that are unique to each individual.
Zebras are African equids related to horses and donkeys. Their stripe patterns vary in width, spacing, and shape, allowing researchers and keepers to distinguish individuals. Foals develop recognizable patterns early in life, and the markings remain individual-specific as the animals mature.
Scientists have proposed several functions for the stripes, including confusing biting flies and helping zebras recognize one another. Research has found that striped patterns can make it harder for horseflies and related insects to land successfully.
Zebras are not all one species. The plains zebra is the most widespread, while the mountain zebra and Grevy’s zebra have different body shapes, ranges, and conservation concerns. Their stripes therefore identify individuals, but not necessarily a species by themselves.