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415 Million-Year-Old Fish Fossil Suggests That Humans Don't Share a Common Ancestor With Sharks, Claim Researchers
Old Fish Fossil Suggests That Humans Don't Share a Common Ancestor With Sharks, Claim Researchers In 2015, researchers claimed that the last common ancestor shared by all jawed vertebrates wasn't ...
The Scientist2y
This Simple Fish May Have Been One of the First Vertebrates
A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.