Three travelers wandered across a sleeping elephant in the dark. They were walking by low moonlight, and all they could see were three big lumps in front of them. The first touched an elephant’s trunk and said, “oh, my, this must be a huge snake!” The second touched an elephant’s ear and said, “oh, my, this must be a giant bat with enormous wings!” The two jumped back from the scary animals in shock, landing in a warm smelly pile of elephant poo.
The third wanderer considered what the first two said while backing away from her pungent travel mates. She listened carefully and heard multiple low rhythmic rumbles. She knew that they were in a nature preserve with numerous elephant herds and that elephants tend to sleep in groups. With this information, she announced – with high probability– that they were next to snoozing elephants.