Woolly mammoths were icons of the Ice Age. Starting 700,000 years ago to just 4,000 years ago, they trundled across the chilly steppe of Eurasia and North America. As ancient glaciers expanded across the Northern Hemisphere, these beasts survived the rapidly cooling temperatures with cold-resistant traits, a characteristic they came by not through evolution, as earlier thought. Woolly mammoths, a new Nature study finds, inherited the traits that made them so successful from a mammoth species closer to a million years old.
An analysis of coelacanth DNA suggests its genome has experienced some significant changes in recent evolutionary history, potentially dispelling the popular image of these iconic fish as being “living fossils.”
Northern Europeans who speak Uralic languages, such as Estonian and Finnish, can thank ancient migrating Siberian populations for their dialects, according to a fascinating new study that combined genetics, archaeology, and linguistics. Continue reading Analysis of Ancient DNA Suggests Finnish and Estonian Languages Came From Siberia
When she was eight years old, Jo Cameron broke her arm and didn’t tell anyone for days; it just wasn’t bothering her. In the six-odd decades since, she has sustained numerous injuries and felt barely any pain. Sometimes, she accidentally leans on her stove, only to notice when she smells burning flesh. Continue reading A Scottish Woman Doesn’t Feel Pain or Stress. Now Researchers Think They Know Why
When a mosquito lands and your arm and starts taking a drink, it’s not just an unhappy accident. Mosquitoes use an array of chemical neuroreceptors to track down their next blood meal. Now, researchers have identified a key receptor that detects the lactic acid in human sweat, a finding that could eventually help people avoid becoming fast food for the insects. Continue reading Mosquitoes Can Smell Your Sweat
POLICE FOUND 19 spent shell casings scattered in the San Diego street where Gregory Benton was murdered on April 12, 2014. Benton and his cousin had gone to buy cigarettes, a witness later said. As they returned to a family party, two men pulled up in a car behind them. They got out, and at least one of them opened fire. Continue reading A NEW METHOD OF DNA TESTING COULD SOLVE MORE SHOOTINGS