All Stories
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PaleontologySome trilobites sported dual digestive tracts
CT scans reveal trilobites with two-lane digestive tracts.
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NeuroscienceStudy of psychiatric disorders is difficult in man and mouse
Studying human psychiatric disorders in animals presents a challenge. A new study highlights one of the ways scientists can study human mutations by slipping them into mice.
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LifeClose look at new fungus reveals origins, spread of salamander killer
A second chytrid fungus described last year targets salamanders and may be spreading in the animal export trade.
By Susan Milius -
AnimalsTen real-life Halloween horrors in the natural world
Vampires and witches are nothing compared to mind-controlling parasites, nose ticks and antibiotic-resistant superbugs.
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For Halloween, Gory Details favorites and farewell
Gory Details blogger Erika Engelhaupt left Science News earlier this year. In a farewell post and in honor of Halloween, she reminisces about some of her favorite, and scariest, posts.
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NeuroscienceScratching releases serotonin, making you itch more
Scratching an itch releases serotonin in the brain, which can eventually make the itch sensation worse, a new study shows.
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EarthEarly animals couldn’t catch a breath
Low levels of oxygen may have hindered evolution of animal life hundreds of millions of years ago.
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TechSheath helps ‘aqua-hamster’ survive underwater
Scientists hoped a membrane invented in 1964 would let submarines pull air from seawater.
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AnimalsBirds large and small hop over obstacles in similar ways
Bipedal birds, from tiny quail to huge ostriches, tackled a step in a similar way, minimizing energy cost and maximizing safety.
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AnimalsNew frog species discovered in New York City
A new frog species lives up and down the East Coast. It was discovered when ecologists realized its ‘ribbit’ was distinct from the calls of a lookalike species.
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Health & MedicineMini stomachs grown in lab
Clumps of human gastric cells could help researchers study stomach diseases.
By Meghan Rosen -
Science & SocietyAsteroids closer to home may get us to Mars
NASA should abandon its attempt to bring a space rock into lunar orbit and instead scrutinize ones already whizzing by Earth, one scientist argues.