News
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EcosystemsExtinct moa ate purple trufflelike fungi, fossil bird droppings reveal
DNA analysis reveals the big, flightless moa birds ate — and pooped out — 13 kinds of fungi, including ones crucial for New Zealand’s forest ecosystem.
By Susan Milius -
PaleontologyEarth’s first waterfowl may have lived in Antarctica 69 million years ago
A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.
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Science & SocietyWill the Endangered Species Act survive Trump?
President Trump has already begun to introduce changes that weaken the Endangered Species Act, a cornerstone of U.S. conservation law.
By Amanda Heidt -
Artificial IntelligenceAre AI chatbot ‘personalities’ in the eye of the beholder?
Defining AI chatbot personality could be based on how a bot “feels” about itself or on how a person feels about the bot they’re interacting with.
By Sujata Gupta -
Quantum PhysicsQuantum mechanics was born 100 years ago. Physicists are celebrating
Quantum physics underlies technologies from the laser to the smartphone. The International Year of Quantum marks a century of scientific developments.
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Planetary ScienceThe moon’s two grand canyons formed in less than 10 minutes
Two gargantuan canyons on the moon were carved by a hailstorm of rocks — and that’s good news for future lunar astronauts.
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Health & MedicinePlastic shards permeate human brains
A study of microplastics and nanoplastics in brains shows an astonishing increase over time.
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AnthropologyAn African strontium map sheds light on the origins of enslaved people
While genetic tests can reveal the ancestry of enslaved individuals, strontium analysis can now home in on where they actually grew up.
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Health & MedicineA new kind of non-opioid painkiller gets FDA approval
The new drug, called Journavx, is a non-opioid for treating short-term moderate to severe pain.
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AnimalsHotter cities? Here come the rats
Well, rats. A study of 16 cities shows that higher ambient temperatures and loss of green space are associated with increasing rodent complaints.
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EarthAncient rocks reveal when rivers began pouring nutrients into the sea
Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.
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AnimalsWild baboons don’t recognize themselves in a mirror
In a lab test, chimps and orangutans can recognize their own reflection. But in the wild, baboons seemingly can’t do the same.