"Zebrae". Wow! That told me. I'm running with the plural being zebra for now, and I'm too lazy to look it up.
Depending on the saturation and brightness of each color your hypothetical plaid-striped zebra might well appear unrelieved and easily outlined grey to the hungry b&w visioned lion. Squish, Crunch, Gulp.
As a zebra is a herd or a game animal, the plural is properly: zebra. (I don't know what the Latin plural would.)