1. The first two of these modes were categorized under aplacental viviparity . 2. Reproduction is a special kind of viviparity , called placental viviparity. 3. Reproduction is a special kind of viviparity, called placental viviparity . 4. Because the space for developing embryos is limited, viviparity reduces brood size. 5. This type of reproduction is termed as Adenotrophic viviparity . 6. Viviparity and ovoviviparity have evolved in many extinct clades of reptiles and in squamates.7. Viviparity is a K selected trait.8. These modes are distinguished from viviparity , which covers all the modes that result in live birth: 9. Renfree co-authored a paper " Hormones and the evolution of viviparity " with Amoroso in 1979. 10. The terms " Ovoviviparity " or " a placental viviparity " have been deprecated because they encompass several unrelated modes of reproduction.
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