Ключевые слова: aggression, animal, beast, behaviour, canine, canis, carnivora, carnivore, competition, competitive, concurrence, creature, danger, dangerous, europe, evolution, fight, fighting, forest, gray, grey, grey wolf, hunter, invasive, life, mammal, natural, nature, outdoors, playing, power, predation, predator, predatory, species, standing, strength, timber, wild, wilderness, wildlife, wolf, wolves, woods, young,