Nobody knows how long they live in the wild, but they do know that they live alone. The leopard gecko doesn't bear, care or rear its young. Once an egg is obtained, the female lays it, then leaves. Some interesting things about the leopard gecko are that if you keep the egg warm, it will be a male, and if you keep it cooler, it will be female. If you put the gecko up to the light, you can see through it at the ear holes.
Small babies act tough when in danger by raising up on all fours, and hissing small screams.
Something else that is interesting, is it eats the shell when it hatches, and eats its old skin when it sheds it.