Life
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Animals
Here’s how polar bears might get traction on snow
Microstructures on the Arctic animals’ paws might offer extra friction that keeps them from slipping on snow, a new study reports.
By Meghan Rosen -
Animals
Bizarre aye-aye primates take nose picking to the extreme
A nose-picking aye-aye’s spindly middle finger probably reaches all the way to the back of the throat, CT scans suggest.
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Animals
Insect swarms might generate as much electric charge as storm clouds
Honeybees flying over a sensor measuring atmospheric voltage sparked a look into how insect-induced static electricity might affect the atmosphere.
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Animals
Mountain lions pushed out by wildfires take more risks
A study tracking mountain lions showed that after an intense burn, the big cats crossed roads more often, raising the risk of becoming roadkill.
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Psychology
A new treatment for debilitating nightmares offers sweeter dreams
A new study combines standard nightmare disorder therapy with a memory-enhancing technique to create happier dreams and bring greater, lasting relief.
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Health & Medicine
Need a fall read? ‘The Song of the Cell’ offers tales from biology and history
Siddhartha Mukherjee’s new book, The Song of the Cell, explores the world of cell biology through the lens of scientists, doctors and patients.
By Meghan Rosen -
Microbes
How fungi make potent toxins that can contaminate food
Genetically engineering Aspergillus fungi to delete certain proteins stops the production of mycotoxins that can be dangerous to human health.
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Environment
Heat waves in U.S. rivers are on the rise. Here’s why that’s a problem
In recent years, heat waves in U.S. rivers have gotten more frequent, causing trouble for fish, plants and water quality.
By Jude Coleman -
Genetics
Ancient DNA unveils Siberian Neandertals’ small-scale social lives
Females often moved into their mate’s communities, which totaled about 20 individuals, researchers say.
By Bruce Bower -
Genetics
Black Death immunity came at a cost to modern-day health
A genetic variant that boosts Crohn’s disease risk may have helped people survive the 14th century bubonic plague known as the Black Death.
By Wynne Parry -
Animals
Honeybees order numbers from left to right, a study claims
In experiments, bees tend to go to smaller numbers on the left, larger ones on the right. But the idea of a mental number line in animals has critics.
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Animals
Some seabirds survive typhoons by flying into them
Streaked shearwaters off the coast of Japan soar for hours near the eye of passing cyclones as a strategy to weather the storm.
By Freda Kreier