Primatologist Jane Goodall has made her name studying chimpanzees for over half a century. So, if anyone can deduce a distinct correlation between a brash chimp and the egoistic hubris of, say, the president of the United States, it’s Goodall. Pre-election, last October, Goodall made a comparison between then-Republican candidate Donald Trump and the primates she has devoted her life to understanding. “In many ways the performances of Donald Trump remind me of male chimpanzees and their dominance rituals,” she told the Atlantic. “In order to impress rivals, males seeking to rise in the dominance hierarchy perform spectacular displays: Stamping,...