科学与环境
A 66-million-year-old tooth reveals T. rex was nearly as warm as a human
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Chemical clues preserved inside fossilized T. rex teeth reveal that the dinosaur maintained a body temperature of about 97 degrees Fahrenheit, almost identical to humans. The finding provides direct evidence that the giant predator was warm-blooded, helping explain how it stayed
Chemical clues preserved inside fossilized T. rex teeth reveal that the dinosaur maintained a body temperature of about 97 degrees Fahrenheit, almost identical to humans. The finding provides direct evidence that the giant predator was warm-blooded, helping explain how it stayed active and survived in chilly environments as far north as Alaska.
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Scientists may have misread a 2-billion-year-old clue about Earth
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Scientists thought they knew how this 70-year-old leukemia drug worked
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Blood tests find high level of cancer-causing forever chemical in residents near factory
People living near a major chemical factory in Lancashire are told they could be at risk of serious health conditions.
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