Sex Determination in Reptiles

Embryonic sex determination (i.e., the mechanism that determines whether embryos develop into males or females) is a fundamental biological process that has significant implications in determining sex ratios in natural populations.  Many vertebrates, including mammals, birds, amphibians, and some reptiles exhibit genotypic sex determination (GSD), where males or females are produced based on the sex […]

Natural History Treats

South Georgia has experienced temperature swings of 50 degrees over the last couple weeks, prompting lively battles between my wife Beth and me here at home— as the “thermostat wars” resumed in earnest. (Yesterday, with the high temp topping 80 F, she had the unmitigated audacity to scold me when she spotted my twitching finger […]