All Stories
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AnimalsBugs may have made us brainy
Finding and eating bugs when other food was scarce helped primates — including our ancestors — evolve bigger and better brains. At least that’s the conclusion of a new study in Costa Rica.
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AnimalsKeep the lights on for National Moth Week
Helping scientists is as easy as leaving your porch light on. Photograph the moths you see and upload them to the Internet for science.
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Health & MedicineYoung blood: The elixir of youth?
Old mice show improved memory when blood from young mice circulated through their brains, a new study finds. Other studies suggest one ingredient in that young blood might be all it takes to deliver benefits.
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Wire critter shows power of surface tension
Water striders walk on water by using surface tension. Now you can do the same with a wire critter weight-lifting contest.
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MicrobesThe war on superbugs
Doctors and scientists are exploring ways to stem the growing global crisis of antibacterial resistance.
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MicrobesExplainer: What you can do to fight antibiotic resistance
Doctors and scientists are not the only people who can help preserve the effectiveness of life-saving antibiotics. Even patients have a role to play, as these tips show.
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MicrobesThe HIV cure — that wasn’t
Immediate and aggressive drug treatment of a baby born with HIV appeared to have cured the girl. In fact, a follow-up shows, she still has the disease.
By Janet Raloff -
FossilsMega-bird!
What may have been the bird world’s biggest flier ever had wings so long, they would have had trouble flapping fast enough to keep it aloft in tough winds. But this behemoth would have been able to soar both far and fast.
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Science & SocietyDissect a frog and keep your hands clean
Dissecting frogs can be a fun and useful way to learn about anatomy. If you don’t have a frog on hand, here are three smartphone apps that allow you have your frog legs and dissect them, too.
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AgricultureYour food choices affect Earth’s climate
Producing food can put a lot of climate-warming pollutants into the atmosphere. But some foods, especially meats, contribute more than others.
By Janet Raloff -
Teaching the teachers with arctic exploration
An expedition company teams up with National Geographic to help teachers get out of the classroom so that they can share polar experiences with their students.
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MicrobesSuperbugs: A silent health emergency
Have antibiotics become too popular? Overusing these medicines fuels resistant germs that pose a global health threat.