Life
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AnimalsHelping birds doctor their babies
Darwin’s finches will soften their nests by weaving in fibers, such as stray bits of cotton. An observant biologist offered those birds some insecticide-treated cotton and the birds took it, which saved their young from deadly parasites.
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BrainThe scent of a woman — or a man
Animals unwittingly signal things about themselves by giving off subtle scents. A new study claims the same is true for people.
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AnimalsMove over cheetah: Mite sets new speed record
A super-speedy species sprints faster than any other land animal — for its size, a new study finds. Scientists may someday tap this tiny mite’s technique to create robots and other devices that zip around at sensational speeds!
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AnimalsDon’t mess with a frustrated fish
When a trout doesn't get the snack it expected, look out. These fish get aggressive. Sometimes they can defeat even bigger fish.
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Health & MedicineInfected cutting boards
Germs can hitchhike into the kitchen on meat and many types of produce. A new study finds that some of those germs are particularly nasty. They are immune to the one or more of the drugs doctors would prescribe to wipe out the infection.
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AnimalsThese insects thirst for tears
In some parts of the world, insects will drop by for a savory beverage. Interestingly, neither a croc — nor a scientist who offered his eyes up to ‘tear-sipping’ bees — seemed bothered much by the freeloaders.
By Janet Raloff -
BrainGhosts in your head
Many people see, feel and hear things that aren’t really there — despite how much their brain tries to convince them otherwise.
By Kirsten Weir -
Health & MedicineNew ‘Heartland’ disease emerges in U.S. Midwest
A new viral disease causes major pain and flu-like symptoms. At present, no treatment or cure exists.
By Janet Raloff -
PlantsWily bacteria create ‘zombie’ plants
Scientists have discovered how some plant pathogens ensure their own survival by transforming flowering plants into strictly leaf-producing ones. These green ‘zombies’ attract insects that the parasites need to help them spread to other plants.
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AnimalsOne plus to wearing stripes
A zebra’s black-and-white coat doesn’t offer cooling or camouflage, researchers find. Instead, its stripes appear to keep away biting flies — and deadly diseases.
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BrainLoneliness can breed disease
Everyone experiences loneliness from time to time. But when allowed to persist, loneliness can damage your health and steal years from your life.
By Hugh Westrup -
MicrobesA success for designer life
Synthetic biologists are scientists who create custom organisms in the lab. Their efforts have just taken a big step forward. They have created the first lab-made yeast chromosome. The advance could lead to entirely synthetic organisms customized to produce food, fuel or medicine.