Gorillas snack on shamrocks at Brookfield Zoo

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Tuesday, March 17, 2015
The treats were made of ground monkey chow, oat meal, wheat germ, flaxseed, bananas, sweet potatoes, unsweetened applesauce, and peanut butter topped with green-dyed yogurt.
Koola, a western lowland gorilla at Brookfield Zoo, eats a nutritious shamrock-shaped treat today on St. Patrick's Day.
Koola, a western lowland gorilla at Brookfield Zoo, doesn't seem like she wants to share her shamrock-shaped treat with her 1 1/2 -year-old daughter Nora.
JoJo, a western lowland gorilla at Brookfield Zoo, eats a nutritious shamrock-shaped treat today on St. Patrick's Day.
Nora, a 1 1/2-year-old western lowland gorilla at Brookfield Zoo, peeks out of the wood wool, or bedding material, that was dyed green for St. Patrick's Day 2015.
Gorillas snack on shamrocks at Brookfield ZooThe treats were made of ground monkey chow, oat meal, wheat germ, flaxseed, bananas, sweet potatoes, unsweetened applesauce, and peanut butter topped with green-dyed yogurt.
Jim Schulz/Chicago Zoological Society

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.