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Are there signs of life in this strange spot on Mars?
A strangely shaped depression on Mars could be a new place to look for signs of life on the Red Planet, researchers say. The depression was probably formed by a volcano beneath a glacier and could have...
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Skull holes hint at shift to walking on 2 feet
A large hole at the base of the skull offers clues to the evolution of bipedalism—walking on two feet—in humans. Compared with those of other primates, the foramen magnum—where the spinal cord passes...
View ArticleBirth risks rise at this point in a doctor’s day
The number of hours an obstetrician has been on the clock before an unscheduled delivery significantly influences risks to the mother and unborn baby, researchers report. Previous studies have...
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Our brain’s map changes for the size of the space
Whereas humans can look at a complex landscape like a mountain vista and almost immediately orient themselves to navigate its multiple regions over long distances, other mammals such as rodents orient...
View ArticleColorectal screening options can boost participation
Helping patients understand colonoscopy alternatives and make a colorectal cancer screening choice based on their own values—combined with one-on-one support—dramatically increases screening completion...
View ArticleKeeping smartphones nearby makes us dumber
New research indicates that our cognitive capacity is reduced whenever our phones are within reach—whether it’s turned on or off. Adrian Ward and coauthors conducted experiments with nearly 800...
View ArticleHow bullying costs schools millions in lost funding
When children don’t go to school to avoid getting bullied for their race, gender, religion, disability, or sexual orientation, schools can lose tens of millions of dollars each year. That’s because...
View ArticleTitan’s tiny waves could make for a smooth landing
Most waves on the liquid methane lakes of Saturn’s largest moon, Titan, are only about 1 centimeter high, research shows. This indicates a serene environment that could be good news for future probes...
View ArticleOil can lead fish to make bad decisions
Oil can negatively affect the higher-order thinking of coral reef fish, making them more vulnerable to predators and less able to find a livable habitat, new research suggests. “…the fish exposed to...
View ArticleStress makes past threats seem scary again
We’re likely to perceive danger in harmless circumstances when memories of past negative experiences combine with stress, research shows. The findings shed light on fear generalization, a core...
View ArticleCan this new painkiller evade the flaws of opioids?
Scientists have discovered what they say is a powerful pain reliever that acts on a previously unknown pain pathway. The synthetic compound, known as UKH-1114, is as effective at relieving neuropathic...
View Article‘Pen’ flags cancer in about 10 seconds
A new device rapidly and accurately identifies cancerous tissue during surgery, delivering results in about 10 seconds—more than 150 times as fast as existing technology. The handheld MasSpec Pen gives...
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How poison frogs keep from poisoning themselves
Scientists are a step closer to resolving a long-lasting head-scratcher: How do poisonous frogs keep from poisoning themselves? To keep predators from eating them, some poison frogs, thimble-sized and...
View ArticleAging adults more likely to reveal thoughts of suicide
A new study shows that 23 percent of people 50 and older who died by suicide had disclosed their suicidal intent. Conditions associated with aging such as chronic pain, diagnosed or perceived terminal...
View ArticleFlu pandemic risk spikes in spring not winter
You might expect that the risk of a new flu pandemic—or worldwide disease outbreak—is greatest at the peak of the flu season in winter, when viruses are most abundant and most likely to spread....
View ArticleTiny bees make huge treks as tree ‘matchmakers’
When it comes to sex between plants, tiny bees the size of ladybugs play a critical role in promoting long-distance pairings, according to one of the most detailed wild tree paternity tests ever...
View ArticleThese 5 tips may help you finally quit smoking
Quitting smoking is a popular New Year’s resolution—but many have trouble sticking with it. “Many people underestimate how difficult it is to not only quit smoking, but to maintain the change.” “Many...
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Tiny dino may have used rainbow feathers to wow mates
A newly-discovered bird-like dinosaur fossil from China offers evidence that could add a new accessory to the list of amazing dinosaur adornments: a shaggy ruff of bright rainbow feathers. Researchers...
View ArticleOil can lead fish to make bad decisions
Oil can negatively affect the higher-order thinking of coral reef fish, making them more vulnerable to predators and less able to find a livable habitat, new research suggests. “…the fish exposed to...
View ArticleStress makes past threats seem scary again
We’re likely to perceive danger in harmless circumstances when memories of past negative experiences combine with stress, research shows. The findings shed light on fear generalization, a core...
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