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Adaptation

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Mice at 22,000 Feet: How the World's Highest‑Dwelling Mammal Survives

A Science paper finds selection for greater heat production, boosted mitochondrial capacity and detox pathways lets Phyllotis vaccarum endure extreme cold and low oxygen.

Peer-Reviewed Study Finds Hibernating Bumblebee Queens Can Breathe Underwater for Days

Greenland Sharks Retain Vision for Centuries, Nature Communications Study Finds

Mosasaurs Lived in Rivers Near the End of the Cretaceous, Isotope Study Finds

Mosasaur Tooth Shows Bus-Sized Marine Reptiles Hunted in Cretaceous Rivers

Study Finds Rodent Thumbnails Are Widespread and Ancient

First Soft-Bodied Cambrian Fossils Found in Grand Canyon Reveal Evolutionary ‘Goldilocks Zone’