European wolf, canis lupus lupus, family, in winter, national park bayrischer wald, germany, captiv

cold animals horizontal carnivore gemeiner warm blooded canid winter developed country fauna wild mammalia national sitting european developed countries captiv predatory intelligent pack wolf four europaeischer german nature endothermic vertebrate europe endotherms bayrischer horizontals warm yawning canids park mammal carnivorous mammals adult endotherm germany one family group predator wildlife carnivora canidae zoology groups vertebrates lupus portrait packs young blooded canis wald snow wolves animal 1030 55350