When1: 1827
When2: 1837
Who: Karl Ernst von Baer [Baer, Karl Ernst von]
What: naturalist
Where: Königsberg, Germany
works\ Letter on the Mammalian Egg and Human Genesis [1827]; History of the Evolution of Animals [1828 and 1837: two parts]
Detail: He lived 1792 to 1876 and discovered ovum in mammals [1826]. Embryos of various vertebrates are similar {Baer laws}.
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Date Modified: 2022.0224