Fig. 2: … and the opossum (a marsupial that split off from placental mammals before they evolved complex placentas). (IMAGE)

University of Vienna

Fig. 2: … and the opossum (a marsupial that split off from placental mammals before they evolved complex placentas).

Caption

Fig. 2: … and the opossum (a marsupial that split off from placental mammals before they evolved complex placentas).

Credit

Daniel Stadtmauer

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