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"It Was Bigger Than A Killer Whale": 66 Million-Year-Old Tooth Suggests Mosasaurs Were Hunting In Rivers, Not Just Seas
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"It Was Bigger Than A Killer Whale": 66 Million-Year-Old Tooth Suggests Mosasaurs Were Hunting In Rivers, Not Just Seas

As if having to evade T. rexes wasn’t scary enough without these monsters lurking every time you came to drink.
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