科学与环境

This 245-million-year-old fossil still has its stomach and intestines

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A 245-million-year-old marine reptile fossil preserves an astonishing amount of detail, including its stomach, liver, and intestines. The discovery reveals that Austronaga minuta was highly adapted for swimming even though its digestive system remained surprisingly simple.

A 245-million-year-old marine reptile fossil preserves an astonishing amount of detail, including its stomach, liver, and intestines. The discovery reveals that Austronaga minuta was highly adapted for swimming even though its digestive system remained surprisingly simple.

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科学与环境

160-million-year-old proteins show surprising power against superbugs

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科学与环境

Scientists may have misread a 2-billion-year-old clue about Earth

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