http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Researchers are proposing in a new report that a major experiment be conducted to reintroduce wolves to a test site in the Scottish Highlands, to help control the populations and behavior of red deer that in the past 250 years have changed the whole nature of large ecosystems. http://www.physorg.com/news167311315.html Biology Mon, 20 Jul 2009 12:23:09 EST news167311315 Populations of major wild grazing animals that are the heart and soul of Kenya's cherished and heavily visited Masai Mara National Reserve -including giraffes, hartebeest, impala, and warthogs -have "decreased substantially" in only 15 years as they compete for survival with a growing concentration of human settlements in the region, according to a new study published today in the May 2009 issue of the British Journal of Zoology. http://www.physorg.com/news159599572.html Biology Wed, 22 Apr 2009 06:13:35 EST news159599572 As the U.S. Southwest grew warmer from 18,700 to 10,000 years ago, juniper trees vanished from what is now the Mojave Desert, robbing packrats of their favorite food. Now, University of Utah biologists have narrowed the hunt for detoxification genes that let the rodents eat toxic creosote bushes that replaced juniper. http://www.physorg.com/news158206615.html Biology Mon, 06 Apr 2009 03:17:25 EST news158206615 Cattle and sheep grazed on natural grasslands help maintain biodiversity and produce tastier, healthier meat, according to a study funded by the Economic and Social Research Council (ESRC). The research, part of the Rural Economy and Land Use (RELU) programme which draws together the social and natural science, concluded that pasture-based farming is good for the environment, the consumer and the producer but needs stronger support from British policy makers if it is to realise its full potential. http://www.physorg.com/news151140196.html Other Sciences Wed, 14 Jan 2009 07:23:16 EST news151140196 Researchers have discovered that grazing animals such as deer and rabbits are actually helping to spread plant disease - quadrupling its prevalence in some cases - and encouraging an invasion of annual grasses that threaten more than 20 million acres of native grasslands in California. http://www.physorg.com/news149793826.html Biology Mon, 29 Dec 2008 17:23:46 EST news149793826