News at a glance: Pterosaur clues, AI’s risks to biosecurity, and graduate students’ mental health

Muddy footprints suggest 2 species of early humans were neighbors in Kenya 1.5 million years ago

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A Fossil Gets Its Name From the Eastern Shoshone Language

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Fossil Footprints Suggest Two Early Human Species Crossed Paths within Hours

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Footprints show two species of ancient human relatives shared the same ground at the same time

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