http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The unexpected capture of a rare ray found only in a small region off South Australia could help marine scientists validate the existence of the elusive magpie fiddler ray (Trygonorrhina melaleuca). http://phys.org/news284887504.html Biology Thu, 11 Apr 2013 09:00:01 EST news284887504 Pilot whales that have died in mass strandings in New Zealand and Australia included many unrelated individuals at each event, a new study concludes, challenging a popular assumption that whales follow each other onto the beach and to almost certain death because of familial ties. http://phys.org/news282479971.html Biology Thu, 14 Mar 2013 12:00:01 EST news282479971 Genetic differences are significantly associated with the likelihood that people take on managerial responsibilities, according to new research from UCL (University College London). http://phys.org/news277470200.html Other Sciences Tue, 15 Jan 2013 11:04:21 EST news277470200 (Phys.org)—A new research study gauging the outlook for the Florida manatee shows that it's a case of great news and not-so-great news. http://phys.org/news275120041.html Biology Wed, 19 Dec 2012 06:30:01 EST news275120041 Scientists from the Wildlife Conservation Society, the American Museum of Natural History, City University of New York, and other organizations have published the first range-wide genetic analysis of the bowhead whale using hundreds of samples from both modern populations and archaeological sites used by indigenous Arctic hunters thousands of years ago. http://phys.org/news269867846.html Biology Fri, 19 Oct 2012 12:17:34 EST news269867846 Armed with a clip board and wearing bright yellow waders, Rima Jabado looked the part of a government inspector at the Dubai fish market as workers sawed the fins off hundreds of dead sharks from Oman and bagged them for export to Asian restaurants. http://phys.org/news269840356.html Biology Fri, 19 Oct 2012 05:00:01 EST news269840356 Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University. http://phys.org/news256814691.html Biology Mon, 21 May 2012 15:01:12 EST news256814691 Analyzing DNA from four ancient skeletons and comparing it with thousands of genetic samples from living humans, a group of Scandinavian scientists reported that agriculture initially spread through Europe because farmers expanded their territory northward, not because the more primitive foragers already living there adopted it on their own. http://phys.org/news254997585.html Biology Mon, 30 Apr 2012 10:30:01 EST news254997585 How modern-day humans dispersed on the planet and the pace of civilization-changing technologies that accompanied their migrations are enduring mysteries. Scholars believe ancient peoples on Europe and Asia moved primarily along east-west routes, taking advantage of the relative sameness in climate, allowing technological advances to spread quickly. But what about in North and South America, with its long, north-south orientation and great variability in climate? How did people move and how quickly did societal innovations follow? http://phys.org/news235649357.html Other Sciences Mon, 19 Sep 2011 11:09:57 EST news235649357 (AP) -- The journal Science is reporting that researchers who said they were closing in on determining the impact of family versus lifestyle in lifespan are reanalyzing their findings. http://phys.org/news199027227.html Medicine & Health Thu, 22 Jul 2010 14:20:41 EST news199027227