Whirl, a two-and-a-half-year-old Amur Tiger chases a pumpkin at Chicago Zoological Society&#39;s Brookfield Zoo in Brookfield, Ill. on Wednesday, Oct. 28, 2009. With the Halloween season upon us, several of the animals, including lions, tigers, polar bears, brown bears, and the gorillas, were given pumpkins to enjoy and play with as part of the zoowide behavioral enrichment program. &#40;AP Photo&#47;M. Spencer Green&#41; <span class=meta>(AP Photo&#47; M. Spencer Green)</span>
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