Michael Phelps and cannabis - proud upholder of our human heritage

So, Michael Phelps was busted for partying with a bong. (Disclaimer: As for cannabis and me, I have to admit, I'm with Obama on this one.) I think Michael should have proudly proclaimed his connection with his human paleo-ethno-botanical heritage. According to the study below, humans have been enjoying this plant's effects for almost three millennia. That's even older than the Olympics! At right: Photomicrograph of 2700-year old Central Asian cannabis leaf fragment, showing retention of chlorophyll and green color. Below: front page of article from Journal of Experimental Biology (click for larger image).

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