Father and son team Dan and Lincoln host a YouTube show called What's Inside?, which began as a school project video. They cut into lots of different things to see what's inside of them, and decided to look inside owl pellets in this episode. Owl pellets are the balls of hair, bone, fur, and other pieces of animals that owls can't digest. If you have a weak stomach, you might want to pass on this one or watch through your fingers.

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