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Fossil holds new insights into how fish evolved onto land

20:00 EDT 20 Jun 2017 | AAAS

(University of Calgary) The fossil of an early snake-like animal -- called Lethiscus stocki -- has kept its evolutionary secrets for the last 340-million years.Now, an international team of researchers, led by the University of Calgary, has revealed new insights into the ancient Scottish fossil that dramatically challenge our understanding of the early evolution of tetrapods, or four-limbed animals with backbones.

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