Details of Evolutionary Transition from Fish to Land Animals Revealed

Wednesday, October 15, 2008 - 14:28 in Paleontology & Archaeology

New research has provided the first detailed look at the internal head skeleton of Tiktaalik roseae, the 375-million-year-old fossil animal that represents an important intermediate step in the evolutionary transition from fish to animals that walked on land. A predator, up to nine feet long, with sharp teeth, a crocodile-like head and a flattened body, Tiktaalik's anatomy and way of life straddle the divide between fish and land-living animals.

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