I've heard a lot of people's snakes try to break out of their tanks at one point or another, and are generally good escape artists. Marble is the opposite. If I take her out and put her next to the tank, she crawls right back in.
She knows that the tank is where it is warm and also where the mice go when it is time to eat, and she's never tried to get out or even flee from me when I hold her. Does anyone else's snakes do this?
She's around nine months old.