Researchers trace octopuses' family tree

Many of the world's deep-sea octopuses evolved from species that lived in the Southern Ocean, according to new molecular evidence reported by researchers at Queen's University Belfast.

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<p><a href="http://www.physorg.com/news145714164.html">Researchers trace octopuses' family tree</a></p> <p>Many of the world's deep-sea octopuses evolved from species that lived in the Southern Ocean, according to new molecular evidence reported by researchers at Queen's University Belfast.</p>