65 for any cold blooded animal is hard to live with. Their metabolism would be slow to such an extent that it would become difficult to maintain proper circulation, digestion, or even eye sight. Think hibernation.....
I had a red eared slider when I was about 10. It was a baby and I kept him outside. A frost came one night and he was frozen in a block of ice the next morning. I remember I just left him there and few days later he was swimming around again. Pretty sweet except I then put him in the freezer for about a week until my mom found him..... There was no more swimming.![]()