Life
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BrainLying won’t stretch your nose, but it will steal some brainpower
The science of lying shows that most people don’t lie often. But when they do, it takes a surprising toll on their brains.
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AnimalsScientists Say: Migration
Migration involves the movement of animals or people from one place to another.
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AnimalsThe scent of queen ‘murder hornets’ can lure males into traps
Traps baited with compounds found in the mating pheromone of hornet queens attracted thousands of males.
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LifeKitchen sponges are bacteria’s dream home
Sponges are favorite spots for bacteria, partly because of the mixed-housing environment that the cleaner-uppers offer microbes.
By Anna Gibbs -
ChemistryScientists Say: Inorganic
Inorganic molecules include salts, minerals and other compounds that lack organics’ carbon-hydrogen bonds.
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AnimalsSurprise! Sixteen tiny wasp species found masquerading as one
Scientists used new and old tools to overturn 160-year-old ideas about this wasp. They show you can’t tell a wasp by its looks.
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AnimalsOne of the earliest meat-eating mammals was saber-toothed
Millions of years before the evolution of saber-toothed cats, a newly discovered "hypercarnivore" prowled the forests of what is now San Diego.
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AnimalsMosquitoes see red, which may be why they find us so appealing
Mosquitoes not only see colors, but also prefer certain ones, such as the hues of human skin.
By Laura Allen -
LifeRobots made of cells blur the line between creature and machine
Scientists are using living cells and tissue as building blocks to make robots. These new machines challenge ideas about robots and life itself.
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Health & MedicineSickle-cell gene therapies offer hope — and challenges
Doctor Erica Esrick discusses existing treatments and an ongoing clinical trial for a gene therapy to treat sickle cell disease.
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GeneticsExplainer: What is sickle cell disease?
Gene mutations can alter an individual’s hemoglobin in ways that curl their blood cells. This can cause painful sickle cell disease.
By Erin Garcia de Jesús and Janet Raloff -
AnimalsThe end of the dinosaurs appears to have come in springtime
Fish fossils from North Dakota suggest when the Chicxulub asteroid devastated Earth, triggering the mass extinction of dinosaurs and other species.
By Sid Perkins