olyclimber Posted December 13, 2005 Posted December 13, 2005 it was put there by intelligent design. obviously as a jousting implement for medival warriors. Quote
TrogdortheBurninator Posted December 13, 2005 Posted December 13, 2005 more information in this photo Quote
catbirdseat Posted December 13, 2005 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. 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
Dru Posted December 13, 2005 Posted December 13, 2005 Walrus - narwhal - unicorn - elephant --> convergent evolution Quote
Winter Posted December 13, 2005 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
EWolfe Posted December 14, 2005 Posted December 14, 2005 That is so cool. Bet it hurts like hell if they wang that tusk on a rock or something. Quote
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