That is a common snapper. These turtles can jump towards you, extend their necks and give you a nasty bite. If you want to remove it, pick it up by the carapace closet to the tail, watching to see the head doesn't swing back and bite. They prefer water, although as was stated they come onto land to lay eggs. The eggs are usually laid quite close to the body of water the turtle lives in, like gators nests. It has to be close because the baby turtles hatching out have to make a run for the water. There is a high mortality rate for all turtle young, they are tasty bites for all kinds of predators such as raptors, coyotes, skunks, coons and bears.