Despite their massive size, bison are quick on their feet. When the need arises they can run at speeds up to 40 miles an hour – as fast as a car.
The bison’s hump is a mass of muscles that support its heavy head.
A bison has very thick winter coat that is well insulated. It is so thick that during winter months, snow will not melt even when it is covering the bison’s back.
Bison are also excellent swimmers. When they swim, their heads, humps and tails stay above the surface of the water.