20 Most Mysterious Discoveries Scientists can’t explain

20 Most Mysterious Discoveries Scientists can’t explain

Fossils are key to helping us understand how the world used to be and, in turn, get a better grasp on why our planet is the way it is now. While some are no more than a stray bone, others are truly awesome and when we find them, a brand new piece of history, sometimes fascinating but other times horrifying, is unlocked. From a fossil found giving birth to the nearly perfectly preserved remains of a 15-ton dinosaur, check out these incredible fossil finds!

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