Tree log damaged and chewed by a Beaver amidst wet forest - Tilt down close up

stump log biomass bark deforestation forestry wood beaver timber wooden trunk forest lumber fallen environmental habitat mammal borer tree damage herbivorous environment trees castoridae ecology ecosystem castor nature natural animal eurasian wildlife wilderness cut brown castoreum plant gnaw wild chop rodent teeth rodents incisors chisel chewing pest eating semiaquatic