+A **hoof** is the hard, protective casing that covers the end of a digit in many [Mammals](/wiki/mammals). Composed primarily of [Keratin](/wiki/keratin), this robust structure supports weight, absorbs impact, and provides traction for movement.
+## See also
+- [Ungulates](/wiki/ungulates)
+- [Foot](/wiki/foot)
+- [Nail](/wiki/nail)