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Death Valley vs. Mount Fuji

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Mustard vs. Mayo

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Black Holes vs. Meteors

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Axolotls vs. Flamingos

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Birthday Parties vs. Trick-or-Treating

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Dogs vs. Cats

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Books vs. Movies

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We're back on January 5th!

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Introducing Smarty Pass: Your ticket to the Brains On! Universe

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Kangaroos vs. Platypuses

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Goldilocks vs. Little Red Riding Hood

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Peanut Butter vs. Marshmallows

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Chefs vs. Veterinarians

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Roller Skating vs. Bowling

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Redwood Tree vs. Prickly Pear Cactus

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Opossums vs. Raccoons

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Sundaes vs. Nachos

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Sneakers vs. Jeans

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Roller Coasters vs. Mini Golf

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Lollipops vs. Popcorn

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Hummingbirds vs. Seahorses

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Naps vs. Exercise

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Season 5 Trailer

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Forever Ago: How ice cream flavors went from whale poo to vanilla