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These song sparrows like to keep their playlists fresh

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Jeevan (Himesh Patel) and Kirsten (Matilda Lawler) brace for a looming pandemic in Station Eleven. Parrish Lewis/HBO Max hide caption

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Parrish Lewis/HBO Max

'Station Eleven': A Home At The End Of The World

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Microglia, specialized cells like the one seen in the center of this image, can restrain the accumulation of beta-amyloid protein (plaques in orange) that are a hallmark of Alzheimer's disease. But the cells sometimes contribute to the progression of the illness, researchers say. Juan Gaertner/Science Source hide caption

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Juan Gaertner/Science Source

Julio Francisco waits for people to show up wanting a COVID-19 test on January 13, 2022 in Miami, Florida. Joe Raedle/Getty Images hide caption

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Joe Raedle/Getty Images

The Omicron Wave Is Receding. What Happens Now?

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A health worker wearing protective clothing shows people lining up at a testing center in Beijing, China. Kevin Frayer/Getty Images hide caption

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Kevin Frayer/Getty Images

A computer-generated image of the omicron variant of the coronavirus. Uma Shankar Sharma/Getty Images hide caption

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Uma Shankar Sharma/Getty Images

A second version of omicron is spreading. Here's why scientists are on alert

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Encore: Freshly made plutonium from outer space found on ocean floor

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A glass is filled in with water on April 27, 2014 in Paris. Scientists studying what makes us thirsty have found the body checks in on our water consumption in several different ways. FRANCK FIFE/AFP via Getty Images hide caption

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FRANCK FIFE/AFP via Getty Images

Thirsty? Here's how your brain answers that question

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Dr. Chikwe Ihekweazu is the head of the World Health Organization's newly created Hub for Pandemic and Epidemic Intelligence. "We have to get better at convincing leaders to use the data we provide and not their political instinct or whatever else their decisions are based on. And that's not easy," he says. Afolabi Sotunde/Reuters hide caption

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Afolabi Sotunde/Reuters

Two chimpanzees roam the grounds of Chimp Haven in Louisiana. Many former research chimpanzees have been sent to retire at the sanctuary. Images provided by Chimp Haven hide caption

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Images provided by Chimp Haven

The NIH is 'largely finished' moving its former research chimps to a sanctuary

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Gas stoves emit pollution into your house and are connected to a production and supply system that leaks the powerful greenhouse gas methane during drilling, fracking, processing and transport. Meredith Miotke for NPR hide caption

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Meredith Miotke for NPR

Gas stoves leak climate-warming methane even when they're off

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The radio telescope in Parkes, Australia is used by SETI researchers to search for potentially alien radio transmissions. TORSTEN BLACKWOOD/AFP via Getty Images hide caption

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TORSTEN BLACKWOOD/AFP via Getty Images

Did E.T. Phone Us?

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This family photo shows D.J. Ferguson initially being treated at Milford, Mass., Regional Medical Center. Brigham and Women's Hospital in Boston is defending itself after Ferguson's family claimed he was denied a new heart for refusing to be vaccinated against COVID-19. Tracey Ferguson file photo/via AP hide caption

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Tracey Ferguson file photo/via AP

The brain science behind deciding to drink when you're thirsty is pretty complicated

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