Ключевые слова: america, american, americanus, amphibia, amphibian, anaxyrus, animal, animals, anura, aquatic, background, batrachology, beautiful, biodiversity, biology, bufo, bufonidae, close, colorful, conservation, detail, eastern, ecology, ecosystem, environment, environmental, herpetology, lake, marsh, maryland, nature, north, north america, north america map, pond, resting, riparian, rock, rocks, sitting, skin, spring, stones, summer, swamp, texture, toad, warts, wetland, wetlands, wild, wild animal, wildlife, zone, zoology,