While we are evolving, the monkeys, too, seem to be evolving, and really fast, much faster than we took to catch up. In Nachu, Kenya, a group of monkeys have started making sexually explicit gestures to harrass women. The women are worried that they will actually be sexually harrassed by monkeys.
http://scienceblogs.com/grrlscientist/2007/08/attack_of_the_evil_monkeys_fro.php
Monkeys make sexually explicit gestures to scare women