^All mammals know they exist. The brain inside of a brain. Who
am I? I figured it out - although I'm sure I'm not the first.
Well, here you go. You know when you get a "gut" feeling or you
just "know" something - like, "I know I exist"?
The sense of taste and "gut" feelings (deep emotions) are
literally located DEEP within your brain. You deeply feel that
you exist because, just like a deep craving for your favorite
food (or drug or perhaps certain emotional states) - are all
happening together in the Insular Cortex - the brain within your
brain.
"I exist" is about as much of a gut feeling as anything else.
it's hard to shake it.
Since all mammals have an insular cortex, this means that all
mammals have self-awareness. They know they exist.