Quote by: Donald Johanson

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


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Author Bio


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