Ключевые слова: amphibian, animal, animals, anuran, background, beautiful, beauty, breeding, brown, brown frog, common, common frog, detail, ecology, ecosystem, egg, eggs, environment, europe, european, eye, fauna, frog, frogs, grass, grass frog, green, habitat, lake, mating, natural, nature, outdoor, ovum, pond, ranidae, reproduction, river, season, small, spring, temporary wound, toad, two, vertebrate, water, wild, wilderness, wildlife, wound,