wildlife benefit from the beavers' dams, ponds, and pathways. they are nocturnal so you are most likely to spot them at dusk or dawn, and expect a rifle report sound of alarm if they spot you first as they slap their tail on the surface of the water before diving (they can "hold their breath" for over 15 minutes).
they don't hibernate. their four front "business teeth" never stop growing all throughout their lives. those four cutting teeth are hard on the front and soft on the back, causing them to "self sharpen" as they do their tree cutting work.
it is a pleasure to come upon their handiwork, like here in 