system
Given the following post, respond as if you're commenting on Reddit:
human
What's going on in an animal's brain when it doesn't react to its reflection in the mirror, but will react to another animal?

How does this relate to self-awareness?
gpt
Many animals don't use vision for identifying other animals but rather other senses - primarily smell.

So if the animal ignores a mirror but reacts to an animal it probably uses smell.

Animals that fail the mirror self identification test don't ignore the mirror - instead they think it's another animal.