Swallowing spiders -- Eight more spider myths busted! -- Earth's orbit -- Pigs are filthy -- Porcupines throw quills -- Poinsettias are poisonous -- Dog years -- Five of the oldest-living animal species -- Dinosaurs brought back to life -- Women talk more than men -- Acne goes away with age -- Five-second rule -- Seven things dirtier than your toilet -- Eggs balance on end during equinox -- bad-luck pennies -- "Luke, I am your father" -- Duck quacks don't echo -- purple pool water -- Bats are blind -- Six more bat myths busted! -- Lightning never strikes twice -- Humans use 10% of their brains -- Killer sharks -- Ten things more likely to kill you than a shark -- Full-moon behavior -- George Washington's teeth -- Five more weird facts about presidential bodies -- Water drains opposite ways -- Cats land on their feet -- Your heart stops when you sneeze -- Pop rocks and soda -- Turkey makes you sleepy -- Bird bellies explode if they eat rice -- Hair and nails grow after death -- The great wall of China -- Six human-made things you can see from space -- Pennies from the Empire State Building -- Napoleon was short -- Tilt your head back to stop a nosebleed -- Sitting too close to the TV -- Six more sight myths busted! -- Alligators in sewers -- Six animals that do live in NYC sewers -- A toad can give you warts -- Bigfoot exists -- Ten more creatures that most likely don't exist -- Dogs' mouths are cleaner than humans' -- Never let a black cat cross your path -- Digesting chewing gum -- Bull charge when they see red -- Mother birds reject babies -- Opossums hand by their tails -- Ten other animals that hand around in trees -- Penguins fall backward -- Elephants are afraid of mice -- Don't open an umbrella indoors -- Goldfish have a three-second memory -- A camel's hump holds water -- Fortune cookies come from China -- Eight more things that didn't come from where you think they did -- Tapping a soda can -- Hold your breath passing a graveyard.