A polar bear at the San Diego Zoo gets into the Halloween spirit as he plays with a pumpkin Thursday, Oct. 28, 2004, at the Zoo's Polar Bear Plunge. Kalluk, a 735-pound sub-adult male bear pounced on, tackled and hugged the large plastic jack-o-lantern which provided him hours of amusement. (AP Photo/Zoological Society of San Diego, Tammy Spratt)