Just what counts as a penis? A debate over what to call the genitals of an unusual group of cave insects has broader implications, because it gets right at the heart of science and science communication: what's the relationship between the labels we use in science and the way those labels are understood by our culture?
In a study that now seems embarrassingly overdue, scientists have tripled the list of human facial expressions from six to 21 — adding such emotions as "sadly surprised" and "happily disgusted."
We're "constantly confronting the onslaught of information, and our brains are trying to make patterns out of the randomness," says TIME's Joel Stein. Obsessively tagged MP3s, meticulous photo folders, whitewashed inboxes—are you too struggling to stay digitally neat?