Zebra

The old explanation for the stripes was camouflage, but the evidence now points somewhere stranger: striped surfaces confuse the landing approach of biting flies, and zebras get bitten far less than solid-colored animals grazing beside them. Every pattern is unique — foals memorize their mother's stripes in the first days of life and can find her in a herd of hundreds. Listen for the bark, a sharp two-note call nothing like a horse's whinny, that carries across the plains to keep a scattered family group together.