https://www.selleckchem.com/pr....oducts/Pemetrexed-di
Comparisons with viviparous species encompass six independent origins of viviparity. The comparisons reveal that both phylogeny and reproductive mode influence variation in extraembryonic membrane development and that phylogenetic variation influences placental evolution. Models of the evolution of squamate placentation have relied primarily on comparisons between independently derived viviparous species. The inclusion of oviparous species in comparative analyses largely supports these models, yet exposes convergent patterns
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