500
This animal is a vegetarian that has evolved mainly eating bark from trees such as Aspens, Cottonwoods, Willow, Balsam, Cherry and Maple, and a variety of plants other than trees some include pond weed, arrowhead, cattail, mil-foil, pond lily, shoots, wild rose, cow parsnip, leaf stems and various roots, even algae from rocks.
What is a Beaver