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

Why Great Plains rivers depend on wetlands as well as climate

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科学与环境

A forgotten 30-year forest experiment just delivered a huge surprise

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