As Oct. 31, nears, Americans young and old prepare for Halloween. Some find spooky costumes, others prepare bloody snacks, and everyone buys candy for children and adults alike. There's an unlikely bunch who love Halloween festivities, too... Animals at the zoo! Check out these animals who can't get enough of their pumpkin playmates for Halloween 2011.

Tiger, Oh My
Whirl, a two-year-old-Amur tiger, plays with a pumpkin at the Brookfield Zoo in Brookfield, Illinois, October 28, 2009. Zookeepers fed pumpkins to the zoo's lions, tigers, bears and gorillas, in honor of the upcoming October 31 Halloween holiday. REUTERS
Gorilla
Nadaya, a male western lowland gorilla, eats a pumpkin at the Brookfield Zoo in Brookfield, Illinois October 28, 2009. Zookeepers fed pumpkins to the zoo's lions, tigers, bears and gorillas, in honor of the upcoming October 31 Halloween holiday. REUTERS
Polar Bear
Hudson a-two-year-old polar bear, eats a pumpkin at the Brookfield Zoo in Brookfield, Illinois October 28, 2009. Zookeepers fed pumpkins to the zoo's lions, tigers, bears and gorillas, in honor of the upcoming October 31 Halloween holiday. REUTERS
Under the Sea
A diver carves a jack-o'-lantern underwater in the Florida Keys National Marine Sanctuary off Key Largo, Florida October 30, 2009 during a underwater pumpkin carving contest. The event is annually staged just before Halloween. REUTERS
Penguins
A Humboldt penguin grabs at an apple as it bobs in its enclosure at Chester Zoo, northern England October 27, 2010. Apples with CD's attached to the bottom are being used by keepers at the zoo as part of an enrichment programme and are their take on the Halloween tradition of ''bobbing for apples''. REUTERS
Divers
Divers Gareth Calvert (L) and Jamie Oliver pose with pumpkins after a race to carve them underwater in the Ocean Reef Halloween display at the London Aquarium October 27, 2010. REUTERS
Orangutan
Orangutan 'Harapan' plays with a pumpkin during a 'Halloween-breakfast' in its enclosure at the Hagenbeck Zoo in the northern German city of Hamburg October 29, 2010. REUTERS
Halloween