Its like asking why cheerleaders stack on top of each other. They do it for fun and entertainment. So do the turtles. Then again it depends on the number,, two or three turtles could mean something else. Just look into it if they are your turtles stacking on top of each other.
Hope this helps,,
xx
Turtles typically have five toes on each of their front feet, but the number of toes on their back feet can vary depending on the species. Most turtles have three or four toes on their back feet. Each toe ends in a claw, which helps them navigate their environment and dig.
There are several types of baby turtles, including sea turtles, freshwater turtles, and land turtles. They can be distinguished from each other based on their physical characteristics, such as the shape of their shells, the size of their flippers, and the habitat they live in. Sea turtles have flippers for swimming in the ocean, while freshwater turtles have webbed feet for swimming in lakes and rivers, and land turtles have sturdy legs for walking on land.
Sit in a straddle stretch to each side including middle for about 10 seconds each then put both feet together and stretch Do this and you might have your splits in less then five minutes.
You get a partner, both sit in a pike position with full feet touching, grab hands, and pull each other to stretch out.
Most turtles including land turtles have webbed feet. Though there are few turtles who do not such as the pig nosed turtle.
turtles have flat feet.
tourtises have fins, while turtles have feet
I'm not sure what kind of turtles you have. I am assuming that they are aquatic and probably the common Red Eared Slider. The males of the species have especially long front claws (nails) that they flicker at a female. If you have two that are doing it to each other, I suspect that you have two amorous males. The females have much shorter nails and shorter, wider tails.
4 feet
a butterfly stretch is when you sit on the floor/ground and touch the bottoms of your feet together and pull your feet as close to you as you can and pull your head to your feet
One has flippers instead of feet!
Turtles have webbed feet due to evolution. Most turtles originated in the water and so on the coast or in a swampy area it is very muddy. To protect parts of their feet it became webbed much like that of a frogs feet