Every June female Snapping Turtles leave their ponds to bury their eggs in sandy soil where the eggs will incubate for the next three months without any parental care or supervision. These eggs, as well as those of many other reptiles, experience temperature-dependent sex determination. The temperature of an individual incubating egg during the middle one-third of embryonic development determines whether the developing turtle will be a male or female. Males are generally produced at lower incubation temperatures than females. At temperatures ranging between 72°F. and 80°F., males usually develop, whereas warmer temperatures around 86°F. produce female turtles.
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