Tiktaalik_roseae_life_restor

Artist’s depiction of Tiktaalik, a now-extinct lobe-finned fish that’s thought to be an ancestor of tetrapods that went on to colonize land. Image credit: Zina Deretsky, National Science Foundation.

Artist’s depiction of Tiktaalik, a now-extinct lobe-finned fish that’s thought to be an ancestor of tetrapods that went on to colonize land. Image credit: Zina Deretsky, National Science Foundation.

Posted 
July 5, 2016
 in 

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