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. (PhysOrg.com) -- Blue whales, the largest animals on earth, are singing with deeper voices every year, but scientists are unsure of the reason. http://www.physorg.com/news179478332.html Biology Tue, 08 Dec 2009 08:40:03 EST news179478332 (AP) -- Giving contraceptives to people in developing countries could help fight climate change by slowing population growth, experts said Friday. http://www.physorg.com/news172492606.html Space & Earth Fri, 18 Sep 2009 11:45:57 EST news172492606 Massive burning of forests for agriculture thousands of years ago may have increased atmospheric carbon dioxide enough to alter global climate and usher in a warming trend that continues today, according to a new study that appears online Aug. 17 in the journal Quaternary Science Reviews. http://www.physorg.com/news169725512.html Space & Earth Mon, 17 Aug 2009 11:00:18 EST news169725512 Consider the case of the three-spine stickleback. These tiny fish that thrive in oceans and in fresh water might appear to be the same, yet ecologists are finding that they are actually a diverse collection of very specialized individuals. http://www.physorg.com/news167491949.html Biology Wed, 22 Jul 2009 15:20:09 EST news167491949 To control mosquito-borne diseases like dengue, researchers need to look at the behavior of people, not just the insect that transmits the disease, according to new research by Steven Stoddard of the University of California, Davis, and intercollegiate colleagues. The study, published July 21 in the open-access journal PLoS Neglected Tropical Diseases, exhibits work by an international, multidisciplinary team of vector biologists, sociologists and virologists studying dengue in Iquitos, Peru. http://www.physorg.com/news167380740.html Medicine & Health Tue, 21 Jul 2009 08:20:02 EST news167380740 That's one conclusion from a new study that looked at how virulence evolves in parasites. The research examined whether parasites evolve to be more or less aggressive depending on whether they are closely connected to their hosts or scattered among more isolated clusters of hosts. http://www.physorg.com/news162651265.html Biology Wed, 27 May 2009 13:55:58 EST news162651265 (PhysOrg.com) -- Studies of climate evolution and the ecology of past-times are often hampered by lost information - lost variables needed to complete the picture have been long thought untraceable but scientists have created a formula which will fill in the gaps of our knowledge and will help predict the future. http://www.physorg.com/news162621293.html Physics Wed, 27 May 2009 05:41:02 EST news162621293 Do zoos have serious programs to save endangered species, besides putting a few captives on display for everyone to see? (Kelly Traw, Seattle) http://www.physorg.com/news158839948.html Biology Mon, 13 Apr 2009 11:12:54 EST news158839948 (PhysOrg.com) -- In general, population extinction is a natural process. For one reason or another, an estimated 99.9% of all species that have lived on Earth are now extinct. However, the reasons for a species going extinct are complex, varied, and changing. Ever since the human population began dispersing throughout the Earth 100,000 years ago, the extinction rate has increased dramatically - as much as 1,000 times, by some estimates - putting us in the midst of a modern extinction called the Holocene extinction event. http://www.physorg.com/news151059872.html Physics Tue, 13 Jan 2009 09:04:32 EST news151059872 A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change. http://www.physorg.com/news144604284.html Biology Thu, 30 Oct 2008 16:51:24 EST news144604284