http://www.helium.com/knowledge/67981-the-role-of-the-galapagos-tortoise-in-discovering-the-theory-of-evolution.xml Helium.com > Zoology > The role of the Galapagos tortoise in discovering the theory of evolution en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT