Salamanders Gallery

COMPARATIVE EMBRYOLOGY. Chart showing comparative embryology from a fish to a man, made by the Department of Comparative and Human Anatomy at the American Museum of Natural History, 1932

COMPARATIVE EMBRYOLOGY.
Chart showing comparative embryology from a fish to a man, made by the Department of Comparative and Human Anatomy at the American Museum of Natural History, 1932

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1932, American, Anatomy, Carousel Collection, Chart, Comparative, Department, Development, Early, Embryo, Embryology, Engraving, Evolution, Fish, Giant, Human, Lizard, Lung, Man, Monkey, Opossum, Salamander, Science, Shark, Text

Frog eye, light micrograph

Frog eye. Light micrograph of a section through the eye of a frog. Most amphibians, such as frogs and salamanders, have color vision, even though they may be restricted to narrower bands of the visible color spectrum than are humans. There are at least four types of photoreceptors or optical sensors with different chemical composition that allow visualisation of different amounts of color by amphibians. Since amphibians have been around a long time and have adapted to a variety of environments, their eye configurations vary slightly for different environments. Amphibian eyes contain photoreceptors like those of some fish. Magnification: x25 when printed at 10 centimetres wide

© Science Photo Library

Marsh frog

Marsh frog (Pelophylax ridibundus). This frog can appear in a variety of colours. It feeds on dragonflies, insects, spiders, earthworms and slugs. Larger frogs are also known to eat mice, salamanders and fish. Photographed in Israel in May

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973900730, Amphibians, Amphibious, Animals, Aquatic, Biological, Differential Focus, Fauna, Frogs, Israeli, Pool, Wild Animal, Wildlife, Zoological