Originally published on Fri June 19, 2015 11:44 am
Increased fatigue, forgetfulness, and reduced eyesight — these are some of the declines that can come with aging.
Certain professions keep a close watch for these sorts of changes, in hopes of protecting the public. And some jobs even have a firm age cutoff: Airline pilots are required to retire at 65, for example, and some firefighters must step down by 57. But there are no nationwide age-related cutoffs, required assessments or guidelines to make sure doctors can do their jobs safely.
In what researchers say is a first, they've discovered the neuron in worms that detects Earth's magnetic field. Animals have been known to sense the magnetic field; a new study identifies the microscopic, antenna-shaped sensor that helps worms orient themselves underground.
The sensory neuron that the worm C. elegans uses to migrate up or down through the soil could be similar to what many other animals use, according to the team of scientists and engineers at The University of Texas at Austin.
You might think you know what frogs sound like — until, that is, you hear the symphony of amphibians that fills the muggy night air at Nokuse Plantation, a nature preserve in the Florida Panhandle.
There, about 100 miles east of Pensacola, a man named M.C. Davis has done something extraordinary: He has bought up tens of thousands of acres in the Florida sandhills and turned them into a unique, private preserve.
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There's something strange happening along the coast of Southern California. It's the latest in a string of rare phenomena that scientists link to unusually warm ocean waters. NPR's Kirk Siegler went to have a look.
Teenagers aren't exactly known for their responsible decision making.
But some young people are especially prone to making rash, risky decisions about sex, drugs and alcohol. Individual differences in the brain's working memory — which allows people to draw on and use information to make decisions — could help explain why some adolescents are especially impulsive when it comes to sex, according to a study published Wednesday inChild Development.
New data from NASA's GRACE satellites show that many of the world's biggest aquifers are being sucked dry at a rate far greater than they are being replenished. Although scientists don't know how much water is left, they hope their findings will serve as a "red flag" for regions that may be overusing water.
In a technological feat that moved the world, last November the European Space Agency landed the small probe Philae on comet 67P/Churyumov–Gerasimenko, which is cruising at some 100,000 miles per hour toward the sun. Excitement turned to high drama when the landing put the probe away from the sun's rays and, thus, from its energy source.