I'm caring for a friend's reptiles while he's overseas on vacation. Tonight his female leopard tortoise laid eggs in his back yard (in a nest I watched her dig and deposit her clutch in). Here's my question: do I leave the eggs to incubate in the ground or should I dig them up and incubate them indoors? I don't have an incubator, and as far as I know my friend doesn't either. Without an incubator is it still possible to incubate the eggs in s temperature-controlled room?