Taittriyaka Upanishad-Unknown

Generation of Animals (or On the Generation of Animals; Greek: Περὶ ζῴων γενέσεως (Peri Zoion Geneseos); Latin: De Generatione Animalium) Book 1: Sexual Parts, Semen & Sexual Generation Book 2: Sexes, Embryo Development & Sterility Book 3: Birds, Fish, Cephalopods, Insects, Bees & Testacea Book 4: Causes of Sex, Heredity & Teratology Book 5: Distinction between Necessity and the Final Cause Charles Darwin wrote: "Linnaeus and Cuvier have been my two gods, though in very different ways, but they were mere schoolboys to old Aristotle." (Life and Letters, vol. iii, p. 252) - Summary by Geoffrey Edwards