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Ancient Armored Fish Had First Bad Bite

Scientific American - Posted: October 17th, 2012, 2:00pm EDT

[caption id=attachment_9236 align=alignleft width=350 caption=Sculpture of placoderm Dunkleosteus; image courtesy of Esben Horn, 10tons; supervised by Martin R?cklin, John Long and Philippe Janvier] [/caption]The ancient ocean was a frightening place. But the emergence of the armored placoderm fish would have made it even more terrifying. These fish were no great whites --some werent much bigger than a goldfish. But they were some of the first vertebrates to have jaws , and new research shows that they were probably the first to brandish teeth as well. a href=http://www.scientificamerican.com/blog/post.cfm?id=ancient-armored-fish-had-first-bad-bite[More]/a

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