FeedaMail: Science News Headlines - Yahoo! News

	Science News Headlines - Yahoo! News
	(Sponsor this newsletter) Dinosaur Tracks Reveal Odd Mating Dance An analysis of the newfound marks suggests they are the first known evidence of a type of mating display behavior known as "scraping," common in modern ground-nesting birds. Paleontologists found scores of these "scrapes," areas in the rock that were shallowly scarred by multiple scratch marks. Martin Lockley, co-author of the study and emeritus professor of geology at the University of Colorado, Denver, told Live Science that these scrape marks were unlike anything the scientists had seen before. Read More » Ötzi the Iceman May Have Suffered Stomach Bug The famous Ötzi, a man murdered about 5,300 years ago in the Italian Alps, had what's now considered the world's oldest known case of Helicobacter pylori, a bacterium that can cause ulcers and gastric cancer, a new study finds. It's unclear whether the ancient iceman did, in fact, have ulcers or gastric cancer because his stomach tissue didn't survive. Today, about half of the world's human population has H. pylori in their gut, but only one in 10 people develop a condition from the bacteria, the researchers said. Read More » Human imprint has thrust Earth into new geological epoch : study By Alister Doyle OSLO (Reuters) - The indelible imprint left by human beings on Earth has become so clear that it justifies naming a new geological epoch after mankind, experts said on Thursday. The dawn of the "Anthropocene" would signal the end of the Holocene epoch, considered to have begun 11,700 years ago at the end of the Ice Age. "Human activity is leaving a pervasive and persistent signature on Earth," said a report in the journal Science by an international team led by Colin Waters of the British Geological Survey. Read More » World's first passenger drone unveiled at CES By Ben Gruber LAS VEGAS, NEVADA, UNITED STATES (REUTERS) - There are hundreds of drones competing for attention in Las Vegas at 2016 Consumer Electronics Show. This is the Ehang 184, the world's first passenger drone. The UAV is completely autonomous, relying on sensors and computers to navigate from take off to landing. Read More » Ancient Citadel Finds New Home in Apartment Building A 3,400-year-old citadel near Israel's Mediterranean coast will soon be part of a modern, high-rise apartment building, according to the Israel Antiquities Authority (IAA). Architects are designing a building that will enclose the citadel, which will reside in the basement, said the IAA, which plans to formally announce the project tomorrow (Jan. 7) at a joint archaeological conference of the Northern Region of the IAA and the University of Haifa in Israel. Archaeologists uncovered the citadel during a recent excavation in the coastal city of Nahariya in northern Israel. Read More » Strange New State of Hydrogen Created By crushing Earth's lightest element with mind-boggling pressures, scientists have revealed an entirely new state of matter: phase V hydrogen. The squished hydrogen is a precursor to a state of matter first proposed in the 1930s, called atomic solid metallic hydrogen. And so, in crushing hydrogen at such high pressures, the physicists also got a glimpse of the inner atmosphere of a gas giant, where pressures reach millions of (Earth) atmospheres. Read More » European scientists make last-ditch attempt to contact comet lander By Victoria Bryan BERLIN (Reuters) - European scientists will send a command into space on Sunday to try to move and restore contact with the comet lander Philae that has fallen silent since the summer. After coming to rest in the shadows when it landed on a comet in November, Philae woke up in June as the comet approached the sun, giving scientists hope that the lander could complete some experiments that it had not done before its solar-powered batteries ran out. Read More » The Big Picture: What the New Diet Guidelines Mean for You Samantha Heller, a senior clinical nutritionist at New York University Langone Medical Center, thinks this approach is a good start. A healthy eating pattern is "an easier concept for people to understand," than, for example, delineating serving sizes, calorie counts and daily totals, Heller told Live Science. Elisabetta Politi, the nutrition director at the Duke Diet & Fitness Center in North Carolina, agreed. Read More » More Young People Report Same-Sex Attractions In particular, more men now say they are "mostly attracted to the opposite sex," rather than "only" attracted to the opposite sex compared to previous years, according to the survey from researchers at the Centers for Disease Control and Prevention. The new trend may result from greater societal acceptance of same-sex relationships, said Ritch Savin-Williams, a professor of developmental psychology at Cornell University who researches sexual orientation and behavior. This change, however, probably doesn't mean that more men now than in the past are feeling same-sex vibes, said Savin-Williams, who was not involved in the survey. Read More » Why Crows Hold Funerals The scientists cited an earlier study showing that American crows gather and act aggressively, behavior known as "mobbing," in response to audio playback of a crow's distress call, played near a dead crow. The researchers wanted to know if they would also learn to associate dead crows — and threats to themselves — with specific predators. Read More » 3 High-Tech Ways to Track What You Eat One gadget, called DietSensor, claims to be able to scan your food with a beam of light and tell you its nutritional content, such as how much protein, fat and carbohydrates it contains. It does this by analyzing how the molecules in the food interact with the light, according to the company, which presented the device here at CES. This causes the molecules in the food to vibrate, and produce an optical signature that is unique for that food, the company says. Read More » Got Allergies? Blame Neanderthals Genetic variants found in modern humans that originally came from Neanderthals may predispose the human immune system to overreact to environmental allergens, according to two new studies published today (Jan. 7) in the American Journal of Human Genetics. The studies also found that interbreeding with Neanderthals may have helped ancient humans, who came from Africa, get a head start in settling Europe. "Neanderthals, for example, had lived in Europe and western Asia for around 200,000 years before the arrival of modern humans. Read More »
	(Sponsor this newsletter)
	Delievered to you by Feedamail. Unsubscribe