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by David Turell , Thursday, March 08, 2012, 01:59 (4622 days ago)
http://blogs.scientificamerican.com/tetrapod-zoology/2012/03/07/gigantic-shark-toothed-...
, Thursday, March 08, 2012, 01:59 (4622 days ago), Thursday, March 08, 2012, 01:59 (4622 days ago)