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. (AP) -- Social networking site Facebook on Monday said it is creating a global safety advisory board to protect its users against online predators such as sex offenders. http://www.physorg.com/news179407529.html Technology Mon, 07 Dec 2009 11:40:01 EST news179407529 Facebook and MySpace have closed the accounts of 3,533 convicted sex offenders in New York state under a law combating online predators, officials said Tuesday. http://www.physorg.com/news178908953.html Technology Tue, 01 Dec 2009 16:58:45 EST news178908953 (PhysOrg.com) -- Cornell researchers released a well-studied beetle predator to test its ability to ward off a hemlock-killing aphid-like insect. http://www.physorg.com/news177151741.html Biology Wed, 11 Nov 2009 09:20:02 EST news177151741 The catastrophic decline around the world of "apex" predators such as wolves, cougars, lions or sharks has led to a huge increase in smaller "mesopredators" that are causing major economic and ecological disruptions, a new study concludes. http://www.physorg.com/news173622881.html Biology Thu, 01 Oct 2009 13:50:02 EST news173622881 Sandbar, dusky and tiger sharks are among dozens of shark species living in the coastal waters off the U.S. East Coast. Little is known about many of the species, but a survey begun nearly 25 years ago is helping scientists and fishery resource managers to monitor shark populations and their role in marine ecosystems. http://www.physorg.com/news169393166.html Biology Thu, 13 Aug 2009 14:50:04 EST news169393166 In the Late Paleozoic (260 million years ago), long before dinosaurs dominated the Earth, ancient precursors to mammals took to the trees to feed on leaves and live high above predators that prowled the land, Jörg Fröbisch, PhD, a Field Museum paleontologist has concluded. Elongated fingers, an opposable "thumb," and a grasping tail of Suminia getmanovi demonstrate that this small plant-eating synapsid is the earliest known tree-climbing vertebrate http://www.physorg.com/news168072751.html Other Sciences Wed, 29 Jul 2009 10:00:01 EST news168072751 A new University of Colorado at Boulder study shows the strongest evidence yet that noise pollution negatively influences bird populations, findings with implications for the fate of ecological communities situated amid growing urban clamor. http://www.physorg.com/news167571326.html Biology Thu, 23 Jul 2009 12:35:51 EST news167571326 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 (PhysOrg.com) -- In addition to providing fundamental insights into the early evolution of the estrogen receptor, research by a team at the University of California, San Diego School of Medicine may lead to a contraceptive for female lampreys - a jawless fish considered an invasive pest species in the Great Lakes region of the United States. This could prove important to the Great Lakes region, where lampreys aggressively consume trout, salmon, sturgeon and other game fish. http://www.physorg.com/news165125517.html Biology Thu, 25 Jun 2009 05:40:01 EST news165125517 Although worlds apart, the way fish learn could be closer to humans' way of thinking than previously believed, suggests a new research study. http://www.physorg.com/news164423377.html Biology Wed, 17 Jun 2009 02:09:53 EST news164423377 Scientists have found the existence of two types of males of a fiercely invasive fish spreading through the Great Lakes, which may provide answers as to how they rapidly reproduce. http://www.physorg.com/news164282737.html Biology Mon, 15 Jun 2009 11:05:55 EST news164282737 When mobbing predators, Siberian jays use over a dozen different calls to communicate the level of danger and predator category to other members of their own group. A Swedish study from Uppsala University, published in the Proceedings of the Royal Society Biological Sciences, shows birds have evolved call systems that are as sophisticated as those of primates and meerkats. http://www.physorg.com/news163677302.html Biology Mon, 08 Jun 2009 10:55:35 EST news163677302 Reed warblers live with the threat that a cuckoo bird will infiltrate their nest, remove one of their eggs, and replace it with the cuckoo's own. This 'parasitism' enables the cuckoo to have its young raised by unsuspecting reed warblers. http://www.physorg.com/news163343509.html Biology Thu, 04 Jun 2009 14:12:12 EST news163343509 What's the secret to surviving during times of environmental change? Evolve…quickly. http://www.physorg.com/news163165201.html Biology Tue, 02 Jun 2009 12:40:26 EST news163165201 Neandertals, the 'stupid' cousins of modern humans were capable of capturing the most impressive animals. This indicates that Neandertals were anything but dim. Dutch researcher Gerrit Dusseldorp analysed their daily forays for food to gain insights into the complex behaviour of the Neandertal. His analysis revealed that the hunting was very knowledge intensive. http://www.physorg.com/news161536699.html Other Sciences Thu, 14 May 2009 16:18:40 EST news161536699 Rare traits persist in a population because predators detect common forms of prey more easily. Researchers writing in the open access journal BMC Ecology found that birds will target salamanders that look like the majority - even reversing their behavior in response to alterations in the ratio of a distinguishing trait. http://www.physorg.com/news161360038.html Biology Tue, 12 May 2009 15:14:47 EST news161360038 A study published in the Proceeding of The Royal Society B entitled "Tonically Immobilized Selfish Prey Can Survive By Sacrificing Other", authored by researchers at Okayama University in Japan point out death feigning has broad application among animal species. http://www.physorg.com/news160294218.html Biology Thu, 30 Apr 2009 10:37:17 EST news160294218 Rangers in Kenya's Hellsgate National Park have spotted an albino buffalo, the first of its kind ever recorded in the wildlife rich country, park officials said Friday. http://www.physorg.com/news159786819.html Biology Fri, 24 Apr 2009 10:14:02 EST news159786819 Charles Darwin was fascinated by the colours of animals - he once wrote to his colleague Alfred Russell Wallace asking why certain animals were "sobeautifully and artistically coloured". http://www.physorg.com/news159108734.html Biology Thu, 16 Apr 2009 13:53:14 EST news159108734 (PhysOrg.com) -- A study conducted at UQ's Moreton Bay Research Station has found, when it comes to crayfish, size really does matter. http://www.physorg.com/news157221587.html Biology Wed, 25 Mar 2009 17:40:17 EST news157221587 (PhysOrg.com) -- University of Michigan ecologists and their colleagues have answered a question that has puzzled biologists for more than a century: What is the main factor that determines a lizard's ability to shed its tail when predators attack? The answer, in a word: Venom. http://www.physorg.com/news157220324.html Biology Wed, 25 Mar 2009 17:19:28 EST news157220324 Authorities in northwestern China have resorted to using a contraception-abortion pill to rein in a plague of gerbils which is threatening the local desert ecosystem, state media said Wednesday. http://www.physorg.com/news157186549.html Biology Wed, 25 Mar 2009 07:56:23 EST news157186549 (PhysOrg.com) -- All life -- plants, animals, people -- depends on peaceful coexistence with a swarm of microbial life that performs vital services from helping to convert food to energy to protection from disease. http://www.physorg.com/news152720475.html Biology Sun, 01 Feb 2009 14:21:41 EST news152720475 Maybe the Internet isn't just one massive predator preyground after all. Maybe our children are much safer in cyberspace than we thought. http://www.physorg.com/news151510052.html Technology Sun, 18 Jan 2009 14:07:32 EST news151510052 (PhysOrg.com) -- Fishing and hunting are having broad, swift impacts on the body size and reproductive abilities of fish and other commercially harvested species, potentially jeopardizing the ability of entire populations to recover, according to the results of a new study that will appear in the January 12, 2009, online issue of the Proceedings of the National Academy of Sciences. http://www.physorg.com/news151002984.html Biology Mon, 12 Jan 2009 17:16:24 EST news151002984 (PhysOrg.com) -- New tires allow race cars to take tight turns at high speeds. Hind wings give moths and butterflies similar advantages: They are not necessary for basic flight but help these creatures take tight turns to evade predators. http://www.physorg.com/news150566255.html Biology Wed, 07 Jan 2009 15:57:35 EST news150566255 (PhysOrg.com) -- Endangered native birds are at risk of losing their instinct to recognise and flee mammalian enemies when moved between predator-free and predator-filled sites, says a Massey researcher. http://www.physorg.com/news148744768.html Biology Wed, 17 Dec 2008 13:59:28 EST news148744768 With long limbs and a soft body, the duck-billed hadrosaur had few defenses against predators such as tyrannosaurs. But new research on the bones of this plant-eating dinosaur suggests that it had at least one advantage: It grew to adulthood much faster than its predators, giving it superiority in size. http://www.physorg.com/news137214687.html Other Sciences Wed, 06 Aug 2008 04:11:27 EST news137214687 Faced with earlier studies stating that the big predators such as tigers, lions, and lynxes fulfil their dietary needs by eating one or two types of prey, scientists from the University of Malaga assure us now that felines need from 5 to 7 different types of prey to fulfil their dietary needs, although they may be more specialised anatomically than the canines (wolves, dogs?) who can obtain 100% ingested biomass by eating three types of prey. This study brings new keys to the paleoecology of the big predators from the past, such as sabre-toothed tigers. http://www.physorg.com/news134982580.html Biology Fri, 11 Jul 2008 08:09:40 EST news134982580