In cows’ guts, ciliates contain a tiny organelle called a hydrogenobody that may drive production of methane, a potent ...

AI may help doctors avoid missed diagnoses, but it still needs real-world testing and human oversight before it can guide ...

A 67-million-year-old claw fossil reveals a new dinosaur species that may have used its hand spikes to snatch and pierce eggs. Colorful lichen living on dinosaur bones reflect infrared light that can ...

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