This is an adult male eastern box turtle. They can live a long time in the wild, around 80 years. This one lives in my garden in the spearmint bed. It lived there last year too. He is very careful about not being spotted. I suspected that he was in my garden again this year because I saw evidence of what he eats (half-eaten tomatoes on the ground) but not until a couple of days ago did I see him. My husband saw him a few weeks ago as the turtle walked from the mint to the tomatoes.
In this picture he is standing inside a tomato cage next to a mushroom and he was probably about to eat it, but he made a noise and I saw him. He was not pleased that he was spotted and he left without eating.