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Neanderthals and modern humans were both living in Europe for between 2,600 and 5,400 years, according to a new paper published in the journal, Nature. For the first time, scientists have constructed a robust timeline showing when the last Neanderthals died out.
Related: Neanderthals and humans had 'ample time' to mix
Related: Neanderthal demise traced in unprecedented detail
Paleolithic inhabitants of modern-day Spain may have eaten snails 10,000 years earlier than their Mediterranean neighbors, according to a study published August 20, 2014 in the open-access journal PLOS ONE.
BLAME the marine mammals. Seals and sea lions may have brought a form of tuberculosis to the Americas, centuries before the Spanish did so.
If you’ve ever spent time with a horse, you’ve probably noticed how mobile their ears are; not only can they point up or lie flat, but they can swivel nearly 180 degrees! Horse handlers harness this mobility to tell a lot about how a horse is feeling by ear-watching. But it is less clear whether horses use their ears to communicate to each other. To test this, British scientists let horses choose to feed from one of two buckets.
When you do not know the answer to a question, say, a crossword puzzle hint, you realize your shortcomings and devise a strategy for finding the missing information. The ability to identify the state of your knowledge—thinking about thinking—is known as metacognition. It is hard to tell whether other animals are also capable of metacognition because we cannot ask them; studies of primates and birds have not yet been able to rule out simpler explanations for this complex process.
By understanding the secret of how lizards regenerate their tails, researchers may be able to develop ways to stimulate the regeneration of limbs in humans. Now, a team of researchers from Arizona State University is one step closer to solving that mystery. The scientists have discovered the genetic “recipe” for lizard tail regeneration, which may come down to using genetic ingredients in just the right mixture and amounts.
Something about city life appears to be causing spiders to grow larger than their rural counterparts. And if that’s not enough to give you nightmares, these bigger urban spiders are also multiplying faster.
Researchers have developed methods for electronically manipulating the flight muscles of moths and for monitoring the electrical signals moths use to control those muscles. The work opens the door to the development of remotely-controlled moths, or 'biobots,' for use in emergency response.
Struggling with chapter 3? Adaptive textbooks will give you extra, personalised help when you need it
Many driver's licenses and passports have holograms and other types of sophisticated security embedded in them, but for the most part, people still heavily rely on ID cards to prove who they are. Biometric identification technologies, such as fingerprinting and iris scanning, are already being used to speed up security clearance at several airports in the United States. Iris scanning is also gaining support in the health care industry, as a way to prevent fraud and combat identity theft. Now, ID tech is moving into new realms, with devices that could distinguish individuals by their veins, brain waves and even body odor.
Despite all the advice about lie detection going around, study after study has found that it is very difficult to spot when someone is lying.
To teach children not to lie, extolling the virtues of honesty may be more effective than focusing on the punishing consequences of deception.
The way children draw at the age of four can be a predictor of later intelligence, a study has suggested.
A new study of 9- and 10-year-olds finds that those who are more aerobically fit have more fibrous and compact white-matter tracts in the brain than their peers who are less fit. 'White matter' describes the bundles of axons that carry nerve signals from one brain region to another. More compact white matter is associated with faster and more efficient nerve activity.
“There are three types of mathematicians, those who can count and those who can’t.”
Autism is primarily a disorder of the brain, but research suggests that as many as nine out of 10 individuals with the condition also suffer from gastrointestinal problems such as inflammatory bowel disease and “leaky gut.” The latter condition occurs when the intestines become excessively permeable and leak their contents into the bloodstream. Scientists have long wondered whether the composition of bacteria in the intestines, known as the gut microbiome, might be abnormal in people with autism and drive some of these symptoms. Now a spate of new studies supports this notion and suggests that restoring proper microbial balance could alleviate some of the disorder's behavioral symptoms.
In an icy lake half a mile beneath the Antarctic ice sheet, scientists have discovered a diverse ecosystem of single-celled organisms that have managed to survive without ever seeing the light of the sun.
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