Surgeons transplanted a gene-edited pig liver into a human for the first time

Mice given fecal transplants from elite cyclists and soccer players had increased energy stores

Avoidable deaths rose in the U.S. by 33 per 100,000 people from 2009 to 2019, as they dropped elsewhere

Babies can form memories using encoding in the hippocampus that's similar to how adults remember

Scientists have identified multiple genes associated with obesity in Labradors

Treating male partners along with women may help stop bacterial vaginosis

AI is helping scientists decode previously inscrutable proteins

Monopedal robot can leap and land like a squirrel — even on tiny targets

Budgerigars parrots and humans share a brain mechanism for speech

NASA's Juno spacecraft reveals dozens of lava lakes on Jupiter’s moon Io

Dark coats may have helped the earliest mammals hide from hungry dinosaurs

Some sea turtles are laying eggs earlier in response to climate change

Human ancestors made the oldest known bone tools 1.5 million years ago

Biological sex is not as simple as male or female

Humans moved into African rainforests at least 150,000 years ago

500-year-old records reveal how people weathered the Little Ice Age

Researchers observe blowfly larvae mimicking termite faces with their butts

Ice with properties of both crystalline ice and liquid water that may form on alien planets has been proven to exist

After decades of drought, recent storms added back only 25 percent of the water lost from Southern California's aquifers since 2006

A study of postmortem brains shows an increase in the abundance of microplastics and nanoplastics in brain tissue.

Earth’s first waterfowl may have lived in Antarctica 69 million years ago

A cosmic neutrino of unknown origins smashes energy records

Zebras and giraffes herding together boosts both species’ chances of survival, researchers report in American Naturalist

The moon’s two grand canyons — formed 3.8 billion years ago — were carved out in less than 10 minutes by a hailstorm of rocks

Scratching an itch can trigger more inflammation — but may also combat harmful bacteria

Cities that saw the biggest temperature rises over the years also had more rat complaints over time, researchers report in Science Advances

Early human ancestors didn’t regularly eat meat | A meat-rich diet may have not emerged before the evolution of other groups like Homo

Pluto may have captured its moon Charon in a “kiss-and-capture” collision

Humans, not climate change, may have wiped out Australia’s giant kangaroos

Health experts propose a new definition of obesity

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