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Monday, November 23, 2009

Photo: Fishy Ancestors of Humans Surprisingly Diverse


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An artist's illustration shows the reconstructed head of Ventastega curonica, a rare transition species between fish and the first four-legged land animals, or tetrapods.

The reconstruction, reported in a June 2008 Nature paper, suggests that the ancestors of tetrapods already displayed some of the group's trademark diversity.

Image by Philip Renne/courtesy Nature