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340 million-year-old 'nail tooth' shark found deep inside Mammoth Cave in KentuckyScientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about a mysterious group of extinct predators.
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166 million-year-old fossil found on Isle of Skye belongs to pony-size dinosaur from JurassicA fossil that was first discovered over 50 years ago has finally been identified as a dinosaur that lived around 166 million years ago, during the Jurassic Period.
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Megalodon may have grown up to 80 feet long — far larger than previous estimatesNew study suggests megalodons may have grown 15 feet longer than some previous estimates, had enormous babies, and didn't look like supersized great white sharks.
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Should we bring back woolly mammoths?Poll Colossal scientists just created "woolly mice" in another step towards their ultimate goal of resurrecting woolly mammoths. But should we be tinkering with extinct species? Take our poll and have your say.
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125 million-year-old fossil of giant venomous scorpion that lived alongside dinosaurs discovered in ChinaExtremely rare fossil of an ancient scorpion unearthed at China's Jehol Biota. The scorpion would've been a key species in the Cretaceous ecosystem, scientists say.
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Giant flying squirrels as big as cats once lived in TennesseeResearchers have identified a giant flying squirrel fossil from a cache of unusual animal remains dug out of an ancient sinkhole in Tennessee 25 years ago. The fossil sheds light on how flying squirrels reached North America.
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What if a giant asteroid had not wiped out the dinosaurs?Nonavian dinosaurs have been extinct for 66 million years, but what would have happened if they'd survived?
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'A set of large teeth sticking out of the ground': Scientists reveal ancient hypercarnivore discovered in Egyptian desertScientists reveal a never-before-seen species of leopard-size apex predator that lived in lush forest 30 million years ago.
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Divers discover 500,000-year-old treasure trove of fossils in Florida sinkholeDivers in Florida’s Steinhatchee River stumbled upon hundreds of pristine fossils from an obscure Ice Age period, including giant armadillos, ancient horses and possibly a new species of tapir.
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