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Re:How Intelligent Are Cats? (2004) by hoten on Sunday April 10, 2022 @12:57PM (#30978987)
A good test is to apply a white mark on the subjects head. Try to do it in a way they don't notice, and use a safe material with no odor. Then see if they start mucking with their head after looking in the mirror.
Re:How Intelligent Are Cats? (2004) by zasdffaa on Sunday April 10, 2022 @01:15PM (#30979230)
Agreed. If an HN poster doesn't start cleaning their hair after looking in a mirror, their account should be cancelled to prevent further posting. That would work.

(err, that's what you meant, right?)

Re:How Intelligent Are Cats? (2004) by rpmisms on Sunday April 10, 2022 @07:04PM (#30982644)
Well, this dog is white, but I may try some experiments. I'm curious if she could recognize a mark.