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