Bison Close–up
Bison fur is very thick, with two layers. The inner layer is soft and wooly, and helps regulate their body temperature, providing great winter insulation so that snow can sit on their backs without melting. The outer layer of fur is the dark–chocolate brown color we see. This fur is coarser and provides the bison protection from the elements. They all have scraggly beards on their chins, some longer than others.