Bison are amazing animals. These big animals are split into groups. The cow groups are made up of females and males under the age of three, but a male bison also has the choose of living individually. When bison travel they foam a line. Bison are able to adapt to all sorts of weather in the winter, if there is snow they will use their heads to reach the food under the snow. Bison are good swimmers and runners. They are great animals.