Life
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AnimalsPythons seem to have an internal compass
The giant, Burmese pythons living in Florida’s Everglades like their adopted home. And new research shows they can find their way back to it if people try to move them somewhere else. Not all snakes will do this.
By Susan Milius -
AnimalsQuieter vibes for city spiders
How much a web vibrates affects how well a spider senses when that web has captured prey. But webs attached to concrete, plastic and other artificial materials vibrate less than do those built on natural materials, such as twigs or leaves.
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MicrobesReturn of the giant zombie virus
Scientists have discovered a new type of virus in Siberian soils. It's the largest virus ever discovered. And guess what: It could infect cells even after 30,000 years in cold storage.
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Health & MedicineSome of chocolate’s health benefits may trace to ‘bugs’
Dark chocolate offers people a number of health benefits. A new study finds that the breakdown of chocolate by microbes in the human gut be behind some benefits.
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AnimalsPassing diseases from bee to bee
A study finds that the viruses and parasites that plague honeybees can infect bumblebees too, sickening another important pollinator.
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BrainMapping the brain’s highways
A new map may explain why some brain injuries are worse than others. Even relatively minor injuries that disrupt message superhighways may have a more devastating impact than some seemingly catastrophic injuries.
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Animals‘Crazy’ ant fight
By neutralizing the poison produced by fire ants, ‘crazy’ ants can survive heated battles. And that may help explain why crazy ants are edging out fire ants in parts of the southern United States.
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BrainWhy boys face higher autism risk
Boys develop autism at four times the rate seen in girls. Girls’ genes are better protected from the mutations linked to this brain disorder, data now suggest.
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FossilsReviving dinosaurs
With the help of computers, researchers are getting a pretty good idea of how these ancient creatures moved, walked and ate.
By Sid Perkins -
AnimalsWe are stardust
Everything making up Earth and what’s now living upon it — from trees and people to our pets and their fleas — owes their origins to the elements forged by ancient stars.
By Beth Geiger -
AnimalsFlower loss doomed the mammoths
Woolly mammoths roamed the Arctic until about 10,000 years ago. Why they died out may trace to the vanishing of the mostly flowering plants on which they had been dining.
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AnimalsBirds versus windows
Buildings in the United States can be deadly obstacles to flying birds. A new study estimates that as many as 1 billion birds die every year after colliding with windows. And low buildings — not skyscrapers — account for most of those deaths.