Red ear slider sex

However, quite often curiosity strikes and people simply want to know. Some slider hobbyists, on the other hand, want to breed their turtles or house multiple turtles in one habitat. For these reasons, you definitely need to know whether your turtles are male or female. T he first step you need to take if you want to determine the gender of your red eared slider is to look at the bottom of your turtle. Simply lift it up and take a look. If the bottom of the shell is concave bulging inward , then your slider is probably male.
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How Turning Down the Heat Makes a Baby Turtle Male

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Temperature-Dependent Male Sex Determination in the Red-Eared Slider Turtle - David Crews

Red-eared sliders Trachemys scripta elegans are some of the most frequently spotted turtles around, in their natural sluggish-water environments as well as in captive habitats. If you come across one of these family Emydidae creatures in the wild, you might be able to confound your pals by specifying the sex. Boy and girl red-eared sliders have some sexual dimorphism and therefore look somewhat different -- though both sexes have the signature red markings close to their eyes. Size difference is a convenient means of telling boy and girl red-eared sliders apart. The females tend to be bigger than the males, but not too significantly. When mature, female red-eared sliders generally achieve 10 to 13 inches in length.
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How to Tell a Boy Red-Eared Turtle From a Girl

Many egg-laying reptiles lack sex chromosomes, depending instead upon the incubation temperature of the egg to determine the sex of their offspring, a process known as temperature-dependent sex determination TSD. How temperature both stimulates and inhibits genetic cascades to determine the type of gonad and direct sexual differentiation is the focus of this application. This investigator and his colleagues have developed the red-eared slider turtle Trachemys scripta elegans as an animal model system to study TSD. These researchers have demonstrated that male and female gonadal development are the result of separate genetic cascades influenced by steroid hormones, and that specific enzymes activate or inhibit steroid hormone effects on sex determination.
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The aptly-name red-eared slider is an easily recognizable semiaquatic turtle that's popular in the global pet trade. These animals are considered one of the top invasive species of the world, and it's really no wonder when you consider their mating habits. Red-eared sliders Trachemys scripta elegans , which have a red stripe around their ears and are known to quickly "slide" off objects into the water, are native to the southern United States and northern Mexico.
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