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A 6-mile-wide space rock and colossal eruptions racked Earth at the same fateful moment. Scientists have tried for decades to determine the primary suspect behind the Cretaceous Extinction.
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The series of more than 100 rock carvings, or petroglyphs, in the forest’s Track Rock Gap were created by Creek and Cherokee people beginning more than 1,000 years ago.
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The two species regularly interbred by about 45,000 years ago.
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The debate around psychedelic patents reflects a deeper question about how to create a business model that puts values before profits.
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Paleolithic cuisine was anything but lean and green, according to a recent study on the diets of our Pleistocene ancestors. For a good 2 million years, Homo sapiens ditched the salad and dined heavily on meat, putting them at the top of the food chain.
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