Ball Python Uses Small Hide. Is She Stupid?

[Malum Argenteum]

I also have three large hollow cork rounds my snake can/does use. They are longer than the boxes, but much narrower, and he uses all of his hides, but prefers one cork hide in particular that surprises me because I'd say he's full grown now, but slips into easily and spends most of his time there.

I find that many of my snakes use cork rounds out of all proportion to how comfortable they look like they'd feel in there. Part of this is certainly that it is a "natural" material (which herps seem to strongly prefer in general) but I wonder if the dimensions are somehow preferable too. Really useful things, those cork rounds.