Submission + - Ancient Fossils of 380-Million-Year-Old Placoderm Show Evolution of 'Six Pack'
An anonymous reader writes: Scientists have found the 380-million-year-old fossils of a pre-historic fish that may help explain how strong abdominals evolved. The placoderm fish from north west Australia may be responsible for these well-developed powerful abdominal muscles that Swedish researchers note are "not unlike the human equivalents displayed on the beaches of the world every summer."