Beaver, beavers, North American Beaver, North American Beavers, american beaver, american beavers, Castor canadensis, mammal, mammals, animals, rodents, wildlife, animal, fauna, rodent, aquatic, wetland, wetlands, wetlands wildlife, wetland wildlife, pond, lake, riparian, river, water, North America, Canada, Alberta, Rocky Mountains, vertical, dam, dam building, build, building, work, working, working on dam, two, 2, leesonphoto, behavior