the.com/ungulate

A mammal that walks on its toenails and calls it a hoof.

means A hoofed mammal — like a horse, deer, cow, or pig — most of which graze or browse on plants.

from From Latin 'ungula' meaning 'hoof' or 'claw,' itself a diminutive of 'unguis,' meaning 'nail' or 'claw.' So an ungulate is literally a 'little-nailed' creature — the hoof being, structurally, just an overgrown, reinforced toenail that evolution turned into load-bearing armor.

definition
hoofed mammal, weight carried on nail tips
two groups
odd-toed horses, even-toed cows and pigs
whale link
hippos are their closest living relatives
toe math
horses walk on a single middle toe
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