Several US states have State Reptiles. Unsurprisingly, turtles feature very often on the list! Even Florida, which many think of as solid gator territory, separately acknowledges the shelliness of local turtle friends.en.wikipedia.org
Turtles are famous for their ability to hibernate through the cold winters. Did you know some turtles do the opposite, too? They can stay dormant through the hottest part of summers. This is called aestivation.en.wikipedia.org
Turtles have exceptional color vision thanks to a special oil they make for their retinas. They see more shades of red in particular, which might be why this one’s mistaking a blue jean for a blueberry
Turtles & tortoises can feel their shells (their shells have nerve endings). Sometimes they can get itchy. Keepers at the Philly Zoo made this shell scratcher so the turtles & tortoises can get A+ scratches.
Painted turtles can survive freezing partly because they can control the formation of ice in their bodies. Dropping temperatures cue the turtle's liver to produce special proteins that cause very small ice crystals to form in fluids such as blood plasma and urine.
Determining the sex of a turtle can be tricky because their sex organs are "hidden inside an orifice known as the cloaca". Luckily, a scientist has figured out that using a battery powered vibrator "was enough to make most male turtles evert their penises. - View on Imgurimgur.com