TY - JOUR
AU1 - Andrews, Robin M.
AU2 - Mathies, Tom
AB - Natural History of Reptilian Development: Constraints on the Evolution of Viviparity ROBIN M. ANDREWS AND TOM MATHIES ViParity, or egg-laying, is the dominant mode 01 A POWERFUL APPROACH IS CLARIFYING THE Oreproduction among vertebrates. Nevertheless, viviparity, the retention of the egg within the reproductive EVOLUTION OF VIVIPARITY: THIS APPROACH tract until embryonic development is complete, characterizes almost all mammals; it has also had at least INVOLVES THE IDENTIFICATION AND 150 independent origins within the fishes, amphibians, CRITICAL EVALUATION OF CLOSELY RELATED and reptiles (Shine 1985, Blackburn 1992, Wourms and Lombardi 1992). These multiple origins suggest pervasive TAXA THAT VARY IN REPRODUCTIVE MODE benefits to viviparity across a wide range of taxa, life histories, and habitats. In the squamate reptiles (lizards and snakes), for example, viviparity is the most common ing the evolution of viviparity; this approach involves the reproductive mode in cold climates, and recent origins of identification and critical evaluation of closely related taxa that vary in reproductive mode (Guillette 1982, Heulin viviparity in this group are also associated with cold 1990, Mathies and Andrews 1995, Qualls 1996, Smith and climates (Shine 1985). Gravid females in cold climates can thermoregulate to keep embryos warmer than they would Shine 
TI - Natural History of Reptilian Development: Constraints on the Evolution of Viviparity
JF - BioScience
DO - 10.1641/0006-3568(2000)050[0227:NHORDC]2.3.CO;2
DA - 2000-03-01
UR - https://www.deepdyve.com/lp/oxford-university-press/natural-history-of-reptilian-development-constraints-on-the-evolution-4Wb82ryznZ
SP - 227
EP - 238
VL - 50
IS - 3
DP - DeepDyve
ER -