Picture sea ice in your mind. You probably imagine brilliant white, snow-covered floes floating on the surface of the ocean, home to penguins in the south of the globe or polar bears in the north.
The Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) has participated in a study published in the Journal of Archaeological Science: Reports on Sala Keimada, one of the rock art sanctuaries in Cueva Palomera, the main cave of the Ojo Guareña Karst Complex (Merindad de Sotoscueva, Burgos, Spain).
Chimpanzees are the only great apes, apart from humans, that have adapted to living on savannas as well as in forests. However, it is not yet well understood how the harsh ecological conditions of the savanna—compared with those of the forest—affect the foods chimpanzees eat and how they obtain them. Now, a study led by the University of Barcelona and the Jane Goodall Institute Spain (IJGE) reveals for the first time the strategies savanna chimpanzees use to make tools and extract aggressive army ants—also known as marabunta—from their underground nests and eat them in these dry, hot habitats.
When consumers pay down debt, many choose to put funds toward their oldest loans first—even when doing so may not make the most financial sense, according to recent research by Alicia M. Johnson, assistant professor of marketing at the Isenberg School of Management.
Ground squirrel droppings, preserved for millennia in the Yukon's deep permafrost, have yielded an enormous amount of environmental DNA from dozens of species of plants, insects, microbes and large mammals, offering detailed genetic information about an environment that no longer exists. It is among the oldest ancient DNA ever recovered and sequenced.
It's surprising how easy it is to see a koala every day in Australia's major cities. The cute, gray marsupial can be found on T-shirts, hanging off people's bags and pencils, and decorating any decent souvenir shop. But seeing a real koala in the wild has become increasingly tricky in some parts of the country. The iconic marsupial is now listed as endangered in Queensland, New South Wales and the Australian Capital Territory.
Young people with the most connections to other suspected offenders of any age are almost five times more likely to carry knives than the average youth suspect, according to a new analysis of more than 200,000 U.K. police records. This top 5% of "super-connected" children aged 10–18 are almost three times more likely to commit violent crime, seven times more likely to commit robberies and nine times more likely to be involved in organized crime than the wider youth suspect population.
Teachers were more likely to accept an overly harsh grade given to a student by AI than when the unduly low grade was handed out by a human. As AI is increasingly integrated into decision-making, concerns about AI errors are often countered by assurances that humans will oversee and check the algorithm's work.
Rhodoliths may look like small rocks on the seafloor, but they are actually living algae that create habitats for marine life and contribute to long-term carbon storage. A new study found that the deeper, low-light waters off Japan's Tanegashima Island harbor a surprisingly distinct and diverse community of these living pink rocks, including four species completely new to science.
A drug once dismissed as ineffective suddenly worked—when scientists tested it under more realistic conditions that mimic the human body. In this surprising new discovery, Northwestern University scientists uncovered a hidden rule of drug behavior. A medicine's effectiveness can change dramatically depending on the conditions inside our cells.
