Article
Progressive Exaptation of Endogenous Retroviruses in Placental Evolution in Cattle
21 Nov 2023
Abstract excerpt
Viviparity is made possible by the placenta, a structure acquired relatively recently in the evolutionary history of eutherian mammals. Compared to oviparity, it increases the survival rate of the fetus, owing to the eutherian placenta. Questions such as "How was the placenta acquired?" and "Why is there diversity in placental morphology among mammalian species?" remain largely unsolved. Our present understanding...
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