Ключевые слова: amphibian, animal, animal behavior, animal eye, animal skin, biology, black, brown, common toad, contrasts, diving, female animal, focus on foreground, four objects, freshwater, front view, glowing, horizontal, lake, living organism, low angle view, male animal, mating, multi colored, orange, pair, part of, red, selective focus, spring, switzerland, toad, ttersee, two animals, underwater, underwater diving, vibrant color, vierwaldst, viewpoint, water, zoology,