Animals express emotion the same way people do, says Jeffrey Mogil, a psychologist and neuroscientist at McGill University in Montreal.

Mogil confirmed in experiments that mice make pretty much the same facial expressions as people.

Charles Darwin, in fact, thought animals were better at showing emotion than humans. "But man himself cannot express love and humility by external signs so plainly as does a dog, when with drooping ears, hanging lips, flexuous body, and wagging tail, he meets his beloved master," said Darwin.

I think scientists make up crap just to see how gullible people are. I mean, c'mon: you think if you stick a rat on a roller coaster, it'll scream and toss its little paws in the air? Nope, regardless what you do to them, they're pretty much stuck with that "What the fuck is this?" expression.

As for Darwin, well, methinks he's fantasizing. If drooping ears and hanging lips are signs of love, I'm three seconds away from being Mrs. Andy Rooney.