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One Ball: Dog vs. Deer.
Porcupine thinks it's a puppy.
Hilarious British animal voiceovers.
Talented little girl leaves the judges speechless.
The orangutan and the hound dog.
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In this TED-Ed animated video by John Lloyd, we're shown what exactly in the world is invisible. Gravity, daytime stars, thoughts, the human genome, time, atoms, so many things we don't realize we can't see.