Knut the polar bear celebrated his second birthday at the Berlin zoo today by nosing at a food sack with the number 2 on it, but the party had a somber tone, as Knut was recently put up for sale by the zoo (anyone have a spare however much a polar bear costs?). I hope someone adopts him soon, because he looks really, really dirty:

Was there an oil spill in his cage? Or is he playing Pigpen in the first all-animal production of You’re a Good Man, Charlie Brown? Probably both.
Two more pics of dirty, dirty Knut after the jump:












