Ключевые слова: algae, amphibian, animal, august, behavior, biology, bubbles, bulgaria, camouflage, carnivorous, ecology, ecosystem, environment, europe, european, eyes, frog, gleam, green, habit, head, heat, hiding, hunting, leg, motionless, mud, natural, nature, outdoors, pond, protruding, puddle, ripple, river, riverbank, shell, sitting, skin, spot, summer, surface, toad, waiting, water, wild, wildlife, yellow, zoology,