belligerent tribal societies

[imported_luckyme]

"Why do rain-forest societies tend to be peaceable and polytheistic, while desert dwellers (and their cultural descendants who dominate the planet) are belligerent and believe in one God?"

from a NYTimes review of- 'Monkeyluv': Primates Are People, Too by JAMIE SHREEVE

I hope this book has some good research behind it on this point. I thought many of those tribes had very high murder rates, does anyone know of a reliable data source?

luckyme,
if I thought I was wrong, I'd change my mind,
... but I'd like a tad of proof first.