traces of a beaver on a tree

animal animalprotection autumn bank bark beaver beaverteeth beaverwork behavior bite brandenburg broken building castor castoridae chew chewed chips chop conservation construction creation cut dam damage deciduous deforestation destroyed destruction eaten ecology environment europe european fall fiber food forest genesis germany gnawed gnawing habitat landscape lodge mammal material natural nature nibbled oderbruch outdoors preparation resettlement river rodent rodents rural seasons shelter splitting spring survival teeth timber traces tree trees trunk typical waste water weather wild wilderness wildlife winter wood woods work