Fruit-eaters are smarter. (On a species basis, anyhow)
Still on vacation, but I thought I'd pass along this link (via Matthew Shugart's Fruits & Votes):
Eating Fruit is a Mentally Taxing Activity (From the premium version of The Economist, via the likely copyright abuse of Brad DeLong).
Shugart muses that:
"...if one of the reasons eating fruit is 'mentally taxing' is that 'fruiting trees are patchily distributed in both space and time,' then clearly having an orchard is a sign of higher intelligence. Right?"I would take that one step further...if eating fruit is a sign of intelligence, and growing fruit is a sign of higher intelligence, then breeding fruit must indicate the very pinnacle of intelligence. At least I'd like to think so.