On a Mudvayne CD, there is a sound bite of a scientist describing humans. His theory suggests a group of apes started eating the nearby mushrooms as part of their standard diet... yes the GOOD mushrooms. This altered their primitive mind state... and this clan of hippie apes evolved into something like cavemen and eventually humans... then of course humans split into races - and the native Americans will tell you, white man is to blame for all the troubles we deal with now. As crazy as we are, that theory actually makes sense to me!