I'm not sure...I'd say they have the capacity to learn. Most of mine know what the containers their food is kept in sound like. I mean, if I open a type of container that I don't usually keep feeders in, they will not react to it. However, if I open the right kind of container, many of my frogs will "come out of the woodwork" even if they were asleep, ready to eat lol.

I don't think leaving the enclosure if you keep the doors open would count as a test of intelligence though...