Editor's note: They can be a bit awkward on land, but their webbed feet and rudder-like tails make them swift and agile in the water. Their irrigation and dam-building skills create habitats for fish, waterfowl, songbirds, insects, and amphibians, as well as reducing soil erosion. They’re apex herbivores and top-notch planners, stashing away enough food in autumn to last through winter. Celebrate these cool aquatic rodents with some beautiful Beaver wallpapers!