Okay, I have a roughly 5 year old Kenyan Sand Boa named Jasper. I've had him for two of those years. He lives in a 20 long aquarium with a heat mat on one side. A water bowl and a buffalo skull are his only "decorations".
ANYWAY I just came home and he was under the lid on the rim of the aquarium!! I'm baffled on how he got up there and why!?! The buffalo skull is kind of in the middle of the tank so he shouldn't be able to climb it and onto the rim. But why would he even do it!? He's had the same setup the whole time I've had him.