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回答: 举个栗子? 由 职业牧师 于 2019-04-08 21:55 The genus Rattus has 137 species, all having evolved since the middle ages: 6park.com[1] T. Yosida. Cytogenetics of the Black Rat. University Park Press, Baltimore, 1980. 6park.com[2] D. Morris. The Mammals. Hodder and Stoughton, London, 1965. 6park.com[3] G. H. H. Tate. "Some Muridae of the Indo-Australian region," Bull. Amer. Museum Nat. Hist. 72: 501-728, 1963. 6park.comAnd this list is only the tip of the iceberg. I deliberately chose vertebrate species. When we go to invertebrates or plants, the number of species since humans evolved is going to be in the thousands. | |||
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