LYNETTE COOK / SCIENCE PHOTO LIBRARY LYNETTE COOK / SCIENCE PHOTO LIBRARY
Late Devonian forest, artwork. An Acanthostega tetrapod climbs over a rock whilst a dragonfly flies overhead. The Late Devonian period extended from 385 to 359 million years before present and was characterised by the development of the tetrapods. Tetrapods evolved from fish, growing legs to walk and paddle on river bottoms. By the beginning of the Carboniferous period which followed, some tetrapods had become adapted to life on land.
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