Life
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AnimalsTrees: Koala air conditioning
When koalas sprawl over a tree branch, they may not be lazy. They just might be taking advantage of some natural cooling — enough to survive a heat wave.
By Susan Milius -
PlantsTaking a long look at lichen
Lichens may not look like much, but they play a vital role in our ecosystems. ISEF finalist Madeline Handley decided learn more about the lichens in her native Alaska.
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AnimalsMosquitoes, be gone!
An extract of local seeds in Puerto Rico may be the key to keeping mosquitoes away. It kills the larval insects and repels the biting adults.
By Sid Perkins -
BrainFootball hits the brain hard
The brain’s hippocampus helps store memories. It is smaller in college football players — especially if they have suffered concussions.
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AnimalsKilling mosquitoes with cashews
When dengue fever came to his hometown, Gabriel Galdino looked for ways to stop its carrier, the mosquito. His findings got him a spot at the 2014 Intel International Science and Engineering Fair.
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MicrobesConvincing bacteria they’re alone
Caffeine may be the trick to confusing some bacteria into thinking they’ve not yet summoned enough troops to launch a successful attack on their host. It could prove an alternative to antibiotics for certain infections.
By Sid Perkins -
AnimalsMite-y discoveries!
Two teens from Russia discovered tiny mites living inside grass-like plants called rushes. Three of the species they turned up are new to science.
By Sid Perkins -
AnimalsElectronics may confuse a bird’s ‘compass’
Birds use Earth’s magnetic field to help guide them as they migrate. A new study suggests that electromagnetic radiation given off by some electronic devices may act like “noise” and confuse the long-traveling birds.
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AnimalsEven penguins get the flu
Scientists have just identified ‘live’ bird flu virus in Antarctic penguins. But the infections may not be novel. There are some signs these germs have been infecting local wildlife for up to 80 years.
By Janet Raloff -
AnimalsSurprise! Fossils in a flash
By studying how dead tissues decay — or turn to ‘instant’ fossils — scientists are gleaning helpful clues to what ancient life looked like.
By Douglas Fox -
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.