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BrainScientists Say: Dopamine
This brain chemical helps focus our attention and plan our path toward success.
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PhysicsShark intestines inspire pipes with a strictly one-way flow
The pipes contain a twisty coil that lets liquids flow in one direction but not the other.
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MathTwo teens have proved an ancient math rule — again
Ne’Kiya Jackson and Calcea Johnson proved math's Pythagorean theorem — in a way thought impossible for 2,000 years — and they did it 10 different ways.
By Nikk Ogasa -
ComputingA new frontier awaits — computing with light
Today’s computers process using electrical signals. But light shows promise as a new means of computing, especially for AI.
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AnimalsWayward baby puffins get help from a community-led Puffling Patrol
Fitted with ID tags or tracking devices, birds from one Iceland colony give scientists an eye into puffins’ largely unknown lives at sea.
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Artificial IntelligenceGoogle now adds watermarks to all its AI-generated content
Google’s AI-created content now hosts an invisible “signature.” A mathematical key can reveal the presence of this digital watermark, called SynthID.
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Materials ScienceExperiment: The surprising strength of eggshells
Architecture is full of arched doors, windows and other structures. But how strong is the natural arch of eggshells?
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AnimalsPutting vampire bats on treadmills revealed an energy-burning quirk
A mini gym for bats shows that vampire bats burn amino acids, rather than the carbs or fats other mammals rely on during exercise.
By Susan Milius -
LifeScientists Say: Organoid
Lab-grown organ models mimic the functions of real organs and may open doors to a future of personalized medical care.
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ClimateTrees may be even bigger climate heroes than we thought
These plants absorb methane, a potent greenhouse gas, in addition to carbon dioxide. Methane’s uptake is likely thanks to microbes living in tree bark.
By Laura Allen -
AnimalsThese healthy fish have bacteria in their brains
The bodies of most animals keep germs, usually linked to disease, out of their brains. But some fish that host microbes seem to do just fine.
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Fossils50 years on, Lucy offers lessons for achieving fossil fame
Since the discovery of Lucy's skeleton in 1974, a catchy name and ongoing scientific debates have kept this human ancestor in the spotlight.
By Bruce Bower