A beaver emerges from the frigid waters, and gracefully traverses along the icy riverbank and begins to gnaw on a branch

beaver emerges frigid waters icy riverbank gnaw branch animal wildlife winter cold snowy north america rodent aquatic ecosystem wetlands fur tail teeth chewing wood habitat environment biodiversity conservation nature outdoors dam construction nocturnal foraging scavenging adaptation behavior creature rodentia movement water stream fur coat mammal american canadian landscape snow survival river