lI1|1! Posted December 13, 2005 Share Posted December 13, 2005 it's a sensory organ Quote Link to comment Share on other sites More sharing options...
Cobra_Commander Posted December 13, 2005 Share Posted December 13, 2005 hung like a narwhal Quote Link to comment Share on other sites More sharing options...
olyclimber Posted December 13, 2005 Share Posted December 13, 2005 it was put there by intelligent design. obviously as a jousting implement for medival warriors. Quote Link to comment Share on other sites More sharing options...
TrogdortheBurninator Posted December 13, 2005 Share Posted December 13, 2005 more information in this photo  Quote Link to comment Share on other sites More sharing options...
catbirdseat Posted December 13, 2005 Share Posted December 13, 2005 They may use the tusk to detect salinity gradients and thereby detect freezing sea water. The salinity would go up as salt is excluded from the water as it freezes. Â Many of you may be familiar with sensitive teeth. As dentin is exposed by receding gums, it become sensitive to heat, cold and changes in ionic strength, etc. So this isn't so far removed from experience of the narwahl. Quote Link to comment Share on other sites More sharing options...
Dru Posted December 13, 2005 Share Posted December 13, 2005 Walrus - narwhal - unicorn - elephant --> convergent evolution Quote Link to comment Share on other sites More sharing options...
Winter Posted December 13, 2005 Share Posted December 13, 2005 more information in this photo  PICTURE THIEF PICTURE THIEF PICTURE THIEF PICTURE THIEF PICTURE THIEF PICTURE THIEF PICTURE THIEF PICTURE THIEF Quote Link to comment Share on other sites More sharing options...
archenemy Posted December 13, 2005 Share Posted December 13, 2005 Bolt vs. pin. Â Picture vs. link. Quote Link to comment Share on other sites More sharing options...
EWolfe Posted December 14, 2005 Share Posted December 14, 2005 That is so cool. Bet it hurts like hell if they wang that tusk on a rock or something. Quote Link to comment Share on other sites More sharing options...
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