The term Bison Features refers to two distinct physical characteristics of the American Bison, which is a large mammal native to North America. The first feature is 'humps', which are the two large muscles located on the bison's shoulders. The second feature is 'manes', which are the long, shaggy hairs that grow along the bison's neck and back. Both of these features are unique to the American Bison and help to distinguish it from other animals.