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.
Hoof Media
The feet of the roe deer (Capreolus capreolus) have cloven hooves with prominent dewclaws.
Sagittal section of a wild horse hoof. Pink: soft tissues; light gray: bone; cyan: tendons; red: corium;yellow: digital cushion; dark gray: frog; orange: sole; brown: walls
A horseshoe like iron plate (called 'naal' in Marathi) is being nailed on the hooves of a bull at Chinawal village, India
Trimming the hoof of a cow with an angle grinder
