290 M-Year-Old Fossil Reveals Shark, Human Ancestor
The common ancestor of all jawed vertebrates on Earth resembled a shark, according to a new analysis of the braincase of a 290-million-year-old fossil fish that has long puzzled paleontologists.
Read more: http://www.laboratoryequipment.com/news-290-m-year-old-fossil-reveals-shark-human-ancestor-061412.aspx?xmlmenuid=51
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