Timberwolf, American wolf (Canis lupus occidentalis), captive, pup at den, Germany, Europe

algonquin wolf algonquin wolves american animal dens animal den animal of prey animal beast of prey canadian timber wolf caniformia caninae canis familiaris canis lupus lycaon canis lupus occidentalis canis lupus canoidea captive animal captive captivity carnivora caves cave central europe common wolf cub deer wolf den deserted dog domestic animals domestic animal domestic dogs domestic dog eastern wolf empty europe german federal republic germany gray wolf gray wolves grey wolf juveniles juvenile mackenzie valley wolf mackenzie valley wolves mammalian mammalia mammals mammal middle europe nobody no one no people predatory animal predator puppies puppy pup suckling uninhabited young animals young animal young dog young