As we learn more from research about how various life forms respond to experiences, a more complex picture may raise political issues.
Brains are not simple, so many “just common sense” theories have fallen by the wayside.
We have tended to assume that intelligence rose with the development of a spinal cord and brain (vertebrates), and warmbloodedness (mammals and birds).
“I’ve done the research. I have the facts.” Thus said two people to me on successive days over the weekend, in almost identical words.