10 Mysteries of You

Is there an evolutionary explanation for why we pick our noses? How about why we laugh... or enjoy art? On the January 20th show, I shared New Scientist's 10 Things We Don't Understand About Humans, an article that suggests some hypotheses for why humans blush, are superstitious, have such an extended adolescent period, and more! A common theme among many of these explanations is the idea that these behaviors and characteristics are adaptive in some way. Although I think some of the hypotheses will likely gain support through empirical testing, it is important to point out that not all explanations in nature must come from an adaptationist's perspective. Sometimes we see characters that are maladaptive or neutral in a population, which means that they do not necessarily provide a selective advantage for the individual that possesses them. There are few cases in nature in which a singular process explains the patterns we see. It is often the job of scientists not to determine which explanation overrules the others, but to determine the relative importance of each explanation.

We ran out of time for the news in nature and sound quiz, but we heard form some great artists such as The Books, Tori Amos, Travis, Sam Cooke, Headlights, Misfits, Basement Jaxx, Grand National, Blockhead, and others.