I was thinking about food caching e.g. by crows. Some animals are very good at retrieving food they've cached, while others seem to lose track. The former is at least popularly taken as evidence of individuals of the species having a good memory. However,... I've got an air conditioner and it's a real energy hog. The electric bill goes way up in the summer. So I'm wondering: Does it save energy if I let the AC run until the room gets cool, then turn it off, then turn it back on when the room gets warm? Instin...2 participating Without Panelists, AskScience won't be doing much here.