http://www.helium.com/knowledge/246427-animal-behavior-is-nature-or-nurture-more-important.xml Helium.com > Animal Facts & Resources > Animal behavior: Is nature or nurture more important? en-us Copyright Helium.com Fri, 19 Jun 2009 00:47:52 GMT Fri, 19 Jun 2009 00:47:52 GMT