I suspect there are individuals in every culture who seem to adapt a bit better, who figure out how to take advantage of conditions a bit better that the next guy.

While "intelligence" has many facets and variables, one of the ways to distinguish a more adept intelligence from a lesser is whether it can recognize intelligence.

In some more primitive societies intelligence might lead to power, and therefore a mate. Henry Kissinger does not look healthy. In fact, to me he's always looked as if he had TB. And, he found a mate. Clearly not a function of either looking healthy or an ability to use tools. I mean, if anyone should have troubles in that line, it should be Henry Kissinger. He did get married, anyway. Don't know if he's getting laid.

Arf