Tuesday, July 24, 2007

More rat facts

Smart, Curious, Ticklish. Rats? - New York Times

It is the ongoing duty of this blog to point out the positive features of rats. This New York Times article summarises some things that have been mentioned here before (eg, rats can be tickled) but contains some information that's new to me:

When it comes to sex, the analogies between rats and humans are “profound,” said James G. Pfaus of Concordia University in Montreal. “It’s not simply instinctual for them,” he said. “Rats know what good sex is and what bad sex is. And when they have reason to anticipate great sex, they give you every indication they’re looking forward to it.”

They wiggle and paw at their ears, hop and dart, stop and flash a come-hither look backward. “We imbue our desire with words and meaning, they show us through actions,” he said. “The good thing about rats is, they don’t lie.”

I wonder how you give a rat "reason to anticipate great sex", as opposed to perfunctory sex with a partner they don't even like.

Anyway, there's more:
Rats have personalities, and they can be glum or cheerful depending on their upbringing and circumstances. One study showed that rats accustomed to good times tend to be optimists, while those reared in unstable conditions become pessimists. Both rats will learn to associate one sound with a good event — a gift of food — and another sound with no food, but when exposed to an ambiguous sound, the optimist will run over expecting to be fed and the pessimist will grumble and skulk away, expecting nothing.
I wonder if a glum rat can still be tickled to help cheer him up.

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