4/10/2013

A primitive jawless fish may have also sported fins just below its anus, according to research published in the journal Biology Letters. The quirkiness of the 370-milion-year-old Euphanerops longaevus suggests that early evolution may have led to a number of strange body parts, some of which survived while others disappeared. "Rather than gradual acquisition of complex characteristics, maybe there was a bit more experimentation and odd acquisitions," said study co-author Robert Sansom.

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