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Biology

A Nile crocodile swallows an impala, its reward for lying in wait beneath the water’s surface. By resurrecting the hemoglobin of ancient crocodilian ancestors, a Husker-led team has helped explain why other vertebrates failed to evolve the adaptations that allow crocs to go hours without air.

Decoding Croc Blood: Mutations Make it an Oxygen-Ferrying Winner

Jar of green juice

Sarunashi juice inhibits lung cancer in mice

A sleeping glassfrog

Glassfrogs Use Reflective Livers to Achieve Transparency

Polar bear at the zoo

Polar bear paws hold the secret to better tire traction

An overcast December day on the University of Washington campus in Seattle.

Trouble falling asleep at night? Chase that daytime light, study shows

Daubenton's bat (Myotis daubentonii) echolocating in flight.

Bats use death metal “growls” to make social calls

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