Gorillas snack on shamrocks at Brookfield Zoo

BROOKFIELD, Ill. (WLS) -- So good, they didn't want to share! Gorillas at Brookfield Zoo celebrated St. Patrick's Day with green, shamrock-shaped treats.

The treats, which Koola, Jojo and Nora seemed to enjoy, were made of ground monkey chow, oat meal, wheat germ, flaxseed, bananas, sweet potatoes, unsweetened applesauce, and peanut butter topped with green-dyed yogurt.

The river in their exhibit was also died green with food coloring.

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