Frog tadpoles feeding, macrophotograph

Frog tadpoles feeding, macrophotograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Frog tadpoles feeding. Macrophotograph of tadpoles of the European common frog (Rana temporaria) feeding on pond weed. Frogs are air-breathing amphibians. Their larval stage (tadpoles) are wholly aquatic, and develop from fertilised eggs. These tadpoles have reached the stage where the hind legs have formed. The tail is made up of central muscles blocks, and two thin fins with blood vessels and chromatophores. The hind legs have feet with webbed digits. The body includes the head with its eyes and jaws for feeding. Lungs have developed by this stage, requiring visits to the water's surface to breathe.

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Keywords: amphibian, animal, aquatic, biological, biology, common frog, developmental biology, eat, eating, european common frog, eyes, fauna, feed, feeding, frog, herpetology, hind leg stage, hind legs, larval stage, life cycle, macrophotograph, nature, plant, pond, pond weed, rana temporaria, swim, swimming, tadpole, tadpoles, tail, under water, underwater, water, wildlife, zoological, zoology

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