primate sexual culture

First, an article about bonobos in the New Yorker. Are they really the swingin' orgy chimps they've become famous to be?

Second, Broadsheet entry on how some chimps have been eating black plums as a type of contraception. Or maybe not - can't really tell if they are eating them for other medicinal purposes, or as a planned strategy for limiting births.

Can assign both of these in reading packet week 1/2 - origins of primate culture.