It does, except that mirrors are not truly a natural phenomenon (most animals, contrary to literature, never really see their reflection in the water, only a shadow). So there is a chance that something more fundamental and novel is going on in the cat's mind.

And in most people's experiences and the view of science, cats do not appear to ever understand it is them in the mirror, whereas other animals (some crows for example) definitely do.

Of course cats know they have ears in the sense that they can touch them themselves. And they know other cats have ears because they can observe them. The question is whether they understand that their ears are the same concept as other cats' ears.

This cat appears very clearly to be learning that, in real time.

Whereas other cats don't ever do this in mirrors. They try to reach the cat in the mirror, they try to outpace it, they try to attack it. They don't usually look in the mirror and then touch their own heads or bodies, and they are not known to be able to pass the mirror dot test, where only understanding that the reflection is actually _them_ should allow them to pass.

This cat looks very much like it could pass the mirror-dot test, and that could be of interest to science.

(Though given how sensitive cats are to things placed on their bodies, how routinely they clean their own faces, and the presence of whiskers on their face, it may actually be impossible to apply the mirror dot test in a way that is meaningful)