ANN ARBOR—We’ve all been there: We eat an entire sleeve of fat-free, low-calorie cookies and we’re stuffing ourselves with more food 15 minutes later. (more…)
Scientists are coming to grips with the superior grasping ability of humans and other primates throughout history.
In a new study, a research team led by Yale University found that even the oldest known human ancestors may have had precision grip capabilities comparable to modern humans. This includes Australopithecus afarensis, which appears in the fossil record a million years before the first evidence of stone tools. (more…)
In the first evidence that natural selection favors an individual’s infection tolerance, researchers from Princeton University and the University of Edinburgh have found that an animal’s ability to endure an internal parasite strongly influences its reproductive success. Reported in the journal PLoS Biology, the finding could provide the groundwork for boosting the resilience of humans and livestock to infection. (more…)
How Culture Influences Violence among the Amazon’s ‘Fierce People’
When Yanomamö men in the Amazon raided villages and killed decades ago, they formed alliances with men in other villages rather than just with close kin like chimpanzees do. And the spoils of war came from marrying their allies’ sisters and daughters, rather than taking their victims’ land and women. (more…)
In at least one respect, Capuchin monkeys are smarter than humans — they don’t assume a higher price tag means better quality, according to a new Yale study appearing in the open-access journal Frontiers in Psychology.
People consistently tend to confuse the price of a good with its quality. For instance, one study showed that people think a wine labeled with an expensive price tag tastes better than the same wine labeled with a cheaper price tag. In other studies, people thought a painkiller worked better when they paid a higher price for it. (more…)
“I see myself as a translator who translates science into a language that someone like me, a literature major, can understand,” said New Yorker writer Elizabeth Kolbert during a recent talk on campus. “Science tends to be written in a very different language, one that non-scientists can’t relate to, a language that isn’t even English.” (more…)
AUSTIN, Texas — A team of researchers at the Cockrell School of Engineering at The University of Texas at Austin has developed a tiny, low-power device that mimics a fly’s hearing mechanism.
The new device could be used to build the next generation of hypersensitive hearing aids with intelligent microphones that adaptively focus only on those conversations or sounds that are of interest to the wearer. (more…)
Almost one in 10 people will someday experience a kidney stone, which creates what is described as the most intense pain imaginable. This increasingly common condition leads to hundreds of thousands of surgeries in the United States each year.
A new device developed at the University of Washington would let doctors use ultrasound to move kidney stones inside the body and help them pass by natural means. (more…)
