ROA leaves incredible animal anatomy graffiti in cities all over the world.
His archived calendar was the only comprehensive source of work I could find. Perhaps he wishes to maintain a degree of anonymity due to the nature of his medium. He covers a whole host of subject matter, but the anatomical animals are my favorite.
SheWalksSoftly 
One response to “ROA Graffiti”
Not heard or seen any of this guys work before, I’m curious to learn more.
I will check the archived calendar link you post here in the mean time…good spot…Nothing wrong with a degree of anonymity…mystery is a rare commodity in times when we know everything about anybody anywhere…well almost:)
BobbyM
http://bobbywashere.wordpress.com