All Stories
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		NeuroscienceMice may ‘catch’ each other’s pain — and pain relief
Healthy mice mirror a companion’s pain or morphine-induced relief. Disrupting certain connections in the brain turns off such empathetic behaviors.
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		AnimalsBrown tree snakes use their tails as lassos to climb wide trees
A never-before-seen climbing technique could inspire the creation of new serpentine robots to navigate difficult terrains.
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		ClimateOcean acidification may make some species glow brighter
Ocean organisms use bioluminescence for hunting, defense and more. A new analysis shows that declines in water pH might change who glows and how much.
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		EarthReawakened Yellowstone geyser isn’t a sign of imminent explosion
The 2018 reactivation of Yellowstone’s Steamboat Geyser isn’t a portent of dangerous volcanic or hydrothermal eruptions, scientists say.
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		For 100 years, bringing you the latest in science
Editor in chief Nancy Shute reflects on a century of science news as the 100th anniversary of Science News arrives.
By Nancy Shute - 			
			
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		Health & MedicineA new polio vaccine joins the fight to vanquish the paralyzing disease
Work on the ground to vaccinate children continues in the push to finally eradicate polio.
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		Science & Society‘The Light Ages’ illuminates the science of the so-called Dark Ages
In telling the story of a monk who contributed to astronomy, a new book shows that science didn’t take a break during the Middle Ages.
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		ChemistryThis weird chemical bond acts like a mash-up of hydrogen and covalent bonds
Chemistry students are taught that hydrogen bonds and covalent bonds are distinct, but a new study shows they exist on a continuum.
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		GeneticsSome identical twins don’t have identical DNA
Mutations arising early in development may account for genetic differences between identical twins.
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		AnthropologyIce Age hunters’ leftovers may have fueled dog domestication
Ancient people tamed wolves by feeding them surplus game, researchers suggest.
By Bruce Bower - 			
			
		Health & MedicineSevere allergic reactions to COVID-19 vaccines are extremely rare, CDC says
Out of the first 1.9 million doses of Pfizer’s COVID-19 vaccine given in the United States, there were 21 reported cases of anaphylaxis, a CDC study finds.