Japanese zoo mourns anime-loving celebrity penguinA celebrity penguin, which made international headlines after forming an attachment to a cardboard cut-out in a Japanese zoo, has died at the age of 21. Tobu Zoo in Japan's central Saitama prefecture announced Grape's death through its Twitter account, saying that the cause of death was unknown. But according to NewsWalker, he would have been around 80-years-old in "human years". Grape the Humbold
