Stuff You Should Know
Don't Be Dumb: Are Fireflies Disappearing?
Have you ever wondered where all the fireflies have gone? Turns out there are several theories. Let Josh set you straight.
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Stuff You Should Know: Can Chuck Feel Josh's Pain?
People with mirror-touch synesthesia literally feel the pain of others -- but why? Tune in as Josh and Chuck explain the fascinating mechanics of mirror neurons in this exclusive video from HowStuffWorks.com and the Science Channel.
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