african black-&-white black-coats black-skin common-zebra equids fast grant’s-zebra grazers greyscale herbivores herbivorous herd herds individual mammal monochrome patterns plains-zebra social striped stripes ungulates unique white-fur white-stripes zebra abstract background black illustration perspective stripe texture vector white black-white blue dot flowers orange pattern red square symbol textures vivid yellow modern bite common hair horse mane mouth