Admit it, you're curious: This is how cow poop becomes energy.

An unexpected energy source may be hiding in plain sight.

Let’s get straight to the facts: A dairy cow produces around 112 pounds of wet manure every day.

Even on a farm with only 187 cows (the U.S. average), that’s nearly 21,000 pounds of cow poop every single day.

Cows produce around 112 pounds of wet manure every day. Image via iStock.

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Gates Foundation: The Story of Food

Ever look for something — for what seems like forever — only to never find it?

Your car keys, your wallet, your soulmate (jk!). It's so frustrating!

GIF from "South Park."

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Gates Foundation: The Story of Food