| wild horse(noun, expression, type, species, classification) |
| zebra(noun, animal, creature, type, fauna) |
| mule(noun, type, species, classification) |
| asinus(noun, type, species, classification) |
| astrohippus(noun, classification, genus, tribe) |
| equus asinus(expression, type, species, classification) |
| equus ferus(expression, type, species, classification) |
| equus quagga(expression, type, species, classification) |
| equus zebra(expression, type, species, classification) |
| horse(noun, type, species, classification) |
| kiang(noun, type, species, classification) |
| onager(noun, type, species, classification) |
| calippus(noun, classification, genus, tribe) |
| dinohippus(noun, classification, genus, tribe) |
| eohippus(noun, animal, species, genus) |
| epihippus(noun, animal, species, genus) |
| equus(noun, classification, genus, tribe) |
| equus grevyi(expression, type, species, classification) |
| equus hemionus(expression, type, species, classification) |
| equus kiang(expression, type, species, classification) |