Quote from: Family Topic

All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.


Share this:  

Author Bio


  • NameDonald Johanson
  • DescriptionAmerican anthropologist
  • BornJune 28, 1943
  • CountryUnited States Of America
  • ProfessionAnthropologist; Archaeologist; Prehistorian
  • AwardsNational Book Award