Three blind men are asked to touch an elephant and describe its shape, but each man’s perspective will vary based on whether he’s touching the tusk, tail or trunk. It’s all about perspective, and the same goes with humor, says Texas A&M University Marketing Professor Caleb Warren, who finds three perspectives that when integrated, can tickle our funny bones. Warren’s examination of humor has been published this week in the Proceedings of the National Academy of Sciences (PNAS).