The carapace of this species can reach more than 40 cm (16 in) in length, but the average length ranges from 15 to 20 cm (6 to 8 in).[6] The females of the species are usually larger than the males. They typically live between 20 and 30 years, although some individuals have lived for more than 40 years.[7] Their life expectancy is shorter when they are kept in captivity.[8] The quality of their living environment has a strong influence on their lifespans and well being.
Female turtle’s foot: Note the short claws.
These turtles are poikilotherms, meaning they are unable to regulate their body temperatures independently; they are completely dependent on the temperature of their environment.[2] For this reason, they need to sunbathe frequently to warm themselves and maintain their body temperatures.
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