All Stories
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AnimalsA koala population’s rapid rebound may let it escape inbreeding’s perils
As koalas in southern Australia have grown from a few hundred to almost half a million, the marsupials show signs of regaining lost genetic variation.
By Jake Buehler -
ChemistryThis molecule puts a new twist on the Möbius strip
A molecule made of carbon and chlorine is half as twisty as the paper loops common in math classes.
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PlantsChickpeas can grow in moon dirt and make seeds
Chickpeas produced seeds in simulated lunar soil, offering clues for future space farming.
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Planetary ScienceA Titan collision may link Saturn’s tilt, its moon Hyperion and its rings
A new study proposes that a crash between Titan and another moon spawned Hyperion and, much later, destabilized Saturn’s inner moons into rings.
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ClimateHundreds of studies have missed how much the oceans are rising
A widely used method to calculate sea level rise may have missed up to a century of change, so the risks could hit home for millions sooner than thought.
By Nikk Ogasa -
Planetary ScienceA chemical ‘Goldilocks zone’ may limit which planets can host life
Life needs nutrients like nitrogen and phosphorus. But without the right balance of oxygen, these elements get locked away in planets’ cores.
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AnimalsCockroaches that eat each other’s wings turn into a fierce fighting force
The wood-feeding cockroach’s cannibalistic love bites lead to a lasting bond. Afterward, the pair prefer each other over all other roaches.
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NeuroscienceThe right sounds may turn sleep into a problem-solving tool
Lucid dreamers who heard puzzle-linked soundtracks while sleeping were more likely to solve those unsolved problems the next day.
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Health & MedicineOver 40? Your rotator cuff probably looks a little rough
MRI scans of over 600 Finnish adults found that nearly all had frayed, torn or otherwise abnormal rotator cuffs — yet most had no symptoms.
By Meghan Rosen -
Health & MedicineSimulations of your gut may predict which probiotics will stick
A “digital gut” predicted which probiotics and high‑fiber diets would take hold in people's guts and produce healthier outcomes.
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Health & MedicineA rising percentage of U.S. teens aren’t getting enough sleep
Teens need eight to 10 hours of sleep each night. A large majority get less than that, according to a national survey of U.S. high school students.
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AnthropologyThe ancient human ancestor ‘Little Foot’ gets a new face
A new digital reconstruction of the face of an early Australopithecus specimen helps add details about the origins of our own species.
By Jay Bennett