fallen tree with beaver teeth marks. tree trunk nibbled by beavers on river bank in forest

animal bank bark beaver beavers belarus belarussian belorussian big bite broken brook carved chew chewed cut cuttings dam damage deforestation destruction environment fall fallen felling forest gnaw gnawed gnawing landscape lodge mark marks natural nature nibbled outdoors predator river rodent stream stump teeth timber tree trunk trunks water wild wildlife wood wooden