Ever-Sharp Urchin Teeth May Yield Tools That Never Need Honing

Discussion in 'Environmental' started by Broaner, Dec 27, 2010.

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  1. Broaner

    Broaner Feather Duster

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  3. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
    That is interesting. To think that sea urchin teeth hold the secret to development of sharper human tools is very interesting indeed.


    :)
     
  4. 2in10

    2in10 Super Moderator Staff Member

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