Of course, to do that for the Cuban boa, you have to hang out in a cave all night watching snakes dangle from the ceiling eating bats. And that's exactly what Vladimir Dinets, an assistant professor at University of Tennessee, decided to do. He published his results in the journal Animal Behavior and Cognition. Desembarco del Granma National Park in eastern Cuba has one cave in particular where Dinets set up shop. Nine boas lived inside, which he could apparently tell apart by their markings because he is a snake whisperer, and for eight consecutive days he watched them hunt. The boas would slither up the walls at sunset and just before dawn to catch bats, hanging upside down from the ceiling of the passage that connected the roosting chamber to the exit where their leathery prey would have to pass by.