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Zoogenesis was an evolutionary theory of Austin Hobart Clark (1880-1954) an American zoologist. The theory postulated that each of the "major types of life forms on earth evolved separately and independently from all the others".[1]

Clark discussed the theory in his book The New Evolution: Zoogenesis (1930). Creationists have quote mined the book and mispresented Clark in many cases.[2] Clark did not deny common descent or evolution. According to Ronald Numbers even though Clark rejected species belonging to branches of a single Phylogenetic tree he still accepted evolution and rejected creationism.[3]


  1. New evolution Zoogenesis
  2. Zoogenesis reviewed by a Young Earth Creationist
  3. The Creationists, Ronald L. Numbers, 1993, p. 53