A Grand Canyon-Sized Valley Has Been Found Beneath Antarctica

    British researchers are claiming to have discovered a massive rift valley beneath the Antarctic ice sheet that rivals the Grand Canyon in depth and is contributing to ice loss on the continent.   “If you stripped away all of the ice here today, you’d see a feature every bit as dramatic as the […]

Share

Study: Is Finicky Eating an Early Symptom of Autism?

New research on the finicky eating habits of children with autism finds that while autistic children tend to eat a less varied diet than other kids do, their dietary preferences have little negative effect on their height, weight and growth. Researchers at the University of Bristol began with a database of children born from 1991 to 1992 who were enrolled in a long-term study in Avon, England

Share

Not So Rare

While devastating for severely afflicted children and their families, autism has long been assumed to be relatively uncommon, appearing in perhaps 1% of all kids. But that figure was a rough estimate at best, based largely on the population of children who have already received a diagnosis of the disorder.

Share

Study: Neanderthal DNA Lives On in Modern Humans

Correction Appended: May 8, 2010A decade after scientists first cracked the human genome, researchers announced in the May 7 issue of Science that they have done the same for Neanderthals, the species of hominid that existed from roughly 400,000 to 30,000 years ago, when their closest relatives, early modern humans, may have driven them to extinction. Led by ancient-DNA expert Svante Pbo of Germany’s Max Planck Institute for Evolutionary Anthropology, scientists reconstructed about 60% of the Neanderthal genome by analyzing tiny chains of ancient DNA extracted from bone fragments of three female Neanderthals excavated in the late 1970s and early ’80s from a cave in Croatia.

Share

Teen Obesity: Lack of Exercise May Not Be to Blame

You don’t have to spend much time with teenagers to know that the average adolescent would rather devote an afternoon to sitting in front of the TV, computer or video-game console than working out in a gym. And in recent years, as physical-education classes have been progressively cut from cash-strapped public-school curriculums, teens have had even more time to lounge, slouch, hang out or do anything but break a sweat.

Share