You're ahead of the game, Charley. The picture's in today's Sun "newspaper" in Britain, with a story repeating the line that the striped coats are there to fool the tiger into thinking she's their mum.
Good job nobody believes what they read in the papers, eh? Still, you shouldn't believe anything you read on the internet, either, so who knows?
For the record, if the story about them being dressed up for entertainment is true, then I'm with kat. I think it's horrible.