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    9 Scientific Mysteries That Will Weird You Out

    Why do redheads need more anesthesia when they go under the knife? And for real, what the hell is up with birds falling from the sky in Arkansas?

    1. Why are fall colors different in Europe?

    2. What is dark matter (besides sort of terrifying)?

    3. What happened in Beebe, Arkansas?

    4. Why do redheads need more anesthesia for medical procedures?

    5. What is "space roar" (a.k.a. ARE ALIENS TRYING TO SPEAK WITH US RIGHT NOW?

    6. How do birds migrate thousands of miles (without Google Maps)?

    7. For heaven's sake, what causes gravity?

    8. What drives evolution? (Pss...natural selection isn't the whole story.)

    9. How are humans and ants like, basically the same?