[willyt]

I think this kind of acknowledgement of consequences behaviour has been documented in other higher mammals too. I read a really interesting article in the New Scientist years ago about study that showed there was cultural knowledge in a particular troupe(?) of Bonobos in Japan. They would teach thier young to wash fruit in the river before eating it and as a result this particular troupe suffered from significantly lower rates of disease than other surrounding troupes. I'll try and find it and submit the link, I think it might be behind a paywall though.