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Showing 1 to 5 of 5 for “"oviparity"”.
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Seasonal Changes in the Morphology of the Uterus of the Oviparous Lizard <em>Saproscincus mustelinus</em> and the Reproductively Bimodal Lizard <em>Saiphos equalis</em>.
<p>Among vertebrates, oviparity, a condition in which young at least partially develop outside the mother's body and are supported by yolk, is the ancestral state to viviparity, the reproductive mode in which embryos are fully developed at birth. Viviparity in reptiles is found only in the …
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Constraints on the Evolution of Viviparity in the Lizard Genus Sceloporus
… hypothesis that the evolutionary transition from oviparity to viviparity involves a "reduction" of the eggshell concurrent with longer durations of egg retention. If this hypothesis is correct, then attributes of eggshells that should enhance exchange of respiratory gases (i.e., thickness, …
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Old World Serpents and New World Dragons: The Evolutionary Dynamics of Pythons and Liolaemid Lizards
… thermal niche and reproductive mode (oviparity versus viviparity), I find that viviparity was the key factor in enabling liolamids to adapt to the high mountains of the Andes. Importantly, when lineages dispersed back into the lowlands, my results for Liolaemus, the most diverse genus …
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Old World Serpents and New World Dragons: The Evolutionary Dynamics of Pythons and Liolaemid Lizards
… thermal niche and reproductive mode (oviparity versus viviparity), I find that viviparity was the key factor in enabling liolamids to adapt to the high mountains of the Andes. Importantly, when lineages dispersed back into the lowlands, my results for Liolaemus, the most diverse genus …
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Pattern and Mechanism of Calcium Mobilization During Embryonic Development in a Viviparous Snake, <em>Virginia striatula</em>.
<p>Yolk supplies the majority of embryonic calcium in snakes. Oviparous and viviparous snakes also receive calcium late in development from the eggshell and placenta, respectively. The pattern and mechanism of calcium transport are partly understood for oviparous snakes. I studied a viviparous …