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That's an interesting result, but actually, most animals are capable of self-recognition, not visual, but olfactive.

It is something that we dismiss because we humans are handicapped, nose-wise.

That's fascinating. Maybe nasally-orientated organisms conceive themselves more as ambient presences than as hard-bodied social atoms?

That is interesting. How do they test that?

Isn't it implied in being territorial?

I would draw a distinction between that kind of olfactory/territorial self-recognition and the kind suggested by this test which actually implies some kind of mental representation of the self.

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