No species in this family has been well studied; most of what is known is based on anecdotal reports. Most species apparently nest in late spring or summer, from October to January. The eggs are elongate with leathery shells, and clutch sizes range from six to 48. Multiple annual clutches have not been confirmed for any species, but seem likely considering the length of the potential nesting season. All species that have been studied exhibit temperature-dependent sex determination, with warm temperatures producing females, intermediate temperatures producing mostly males, and still cooler temperatures again producing females.
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