Evolution: our biggest mistake

Below is a cartoon someone posted to a forum I'm on, along with a note that the cartoonist, Prof. Hiroshi Takatsuki, is Japan's leading waste management scholar for the past 35 years. More of his cartoons are here.
"Many were increasingly of the opinion that they'd all made a big mistake in coming down from the trees in the first place. And some said that even the trees had been a bad move, and that no one should ever have left the oceans."

~Douglas Adams, The Hitchhiker's Guide to the Galaxy