Life
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AnimalsWhy you’ll never see a dirty gecko
By knowing how a gecko’s skin works, could self-cleaning, water-repelling, antibacterial clothes be far behind?
By Ilima Loomis -
GeneticsSilencing genes — to understand them
Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.
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MicrobesLife’s ultra-slow lane is deep beneath the sea
Biologists had suspected the deep seafloor would be little more than barren sediment. But they found a surprising amount of oxygen — and life.
By Beth Geiger -
AnimalsNews Brief: Rabbit-hunting pythons are altering Everglades
Rabbits may breed rapidly, but not fast enough to compensate for the huge summer appetites of huge pythons roaming Florida’s Everglades.
By Susan Milius -
Health & MedicineStress for success
Stress and anxiety can lead to serious mental and behavioral problems. Identifying stressors can help people cope with anxiety. Even better, viewing stress as a strength can tone down anxious feelings and boost productivity.
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AnimalsFinding out why birds are out of range
Sometimes people see large numbers of birds outside of their normal range. A student examined how to predict these excursions.
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Health & MedicineChickens spread latest deadly bird flu
A new bird flu virus threatens to spread outside of China. Experts traced the germ to markets where live chickens are sold.
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BrainScientists Say: Cortical homunculus
If you draw a representation of your body as seen by your brain, it’s called a homunculus. On it, parts sensitive to touch or used for fine movement are large, while others are small.
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AnimalsThe social lives of whales
New tools are giving scientists an unprecedented glimpse into the behaviors of whales and dolphins. And these new data are upending long-held assumptions.
By Eric Wagner -
AnimalsWhere an ant goes when it’s gotta go
The black garden ant has been spotted defecating inside its own nest. Scientists now characterize these spots as ant toilets.
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AnimalsPenguins? How tasteless
Penguins may look all dressed up in tuxedo-wear, but their taste buds are the bare minimum. This means that the birds will never sense more than a hint of their meals’ true flavors.
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BrainScientists Say: Blood-brain barrier
Blood can contain nasty bacteria and other things you want to keep away from your delicate brain. The blood-brain barrier is up to the job.