That picture originally came from a BBC article. I cant remember what it was about, other than I think a zoo in either China or Austrailia. Anyways, I remember because I was reading the article, thought the picture was funny, and downloaded it to my computer. I saw Calantus start using it as an avatar not a whole lot longer after that. Guess the rest of the internet caught on to it.
"My great-grandfather did not travel across four thousand miles of the Atlantic Ocean to see this nation overrun by immigrants. He did it because he killed a man back in Ireland. That's the rumor." -Stephen Colbert