Mental Floss

NATURE











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They're colorful, dangerous, and mesmerizing—and there's a lot more going on with gelatinous jellyfish than meets the eye. Here are 15 electrifying fast about these undersea beauties.

Michele Debczak












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The Brule River in Minnesota splits just before it enters Lake Superior. One side becomes a 50 foot waterfall, and the other pours into a giant pothole. Where it goes from there is a mystery.

Caitlin Schneider


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The pangolin looks like a cross between an iguana, an anteater, and a roly-poly. What's the deal with this armored, burrowing creature?

Shaunacy Ferro