Super-primate

The older brain is very old indeed, and in its super-primate form served hominids well during their long hunting-and-gathering period.

None of them have real thoughts, none can foresee the future or regret the past, none are self-aware, except the super-primate humans, us.

In deference to William of Ockham, it would seem prudent to view genus Homo as a super-primate up to the point where new models and theories are required to make sense of the more phylogenetically advanced behavioral phenomena.

I'd read in a book about monkeys that the primate nervous system was slow to be turned on and even slower to switch off. If so, Pia was a super-primate in that she took forever to respond but once aroused could never calm down.