Previously, we’ve talked about how enlarged pupils can signify attention or arousal. If someone’s pupils dilate when you talk to them,...

No two human brains are exactly alike. Or at least, that’s what neuroscientists have generally assumed. After all, consider the highly...

Parrots: at times, they seem almost suspiciously smart. It’s not just about the talking and the mimicry; the Harvard Gazette reports that...

“You are what you buy,” our consumer culture seems to tell us. But how fixed and immutable are our buying preferences? How subject are...