COLORADO SPRINGS, Colo. (CBS4) - Some hippos at the Cheyenne Mountain Zoo are enjoying a special day on Monday. Staff at the zoo in Colorado Springs celebrated Pi Day by providing their hippo pod with "hippo pies."
The pies are filled with food the Nile hippos love:
- mashed bananas
- herbivore grain
They were made by hand by the zookeepers.
The day 3.14 is a celebration of the mathematical constant.
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