Hoof
A hoof is the foot of certain animals known as ungulates (such as deer, cows, pigs, sheep, and giraffes). These animals walk on their toes. The toes have a hard cover made out of the same material as fingernails. This is called keratin.
A hoof is the foot of certain animals known as ungulates (such as deer, cows, pigs, sheep, and giraffes). These animals walk on their toes. The toes have a hard cover made out of the same material as fingernails. This is called keratin.