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. Pittsburgh, Pennsylvania, USA…An international team of paleontologists has discovered a new species of mammal that lived 123 million years ago in what is now the Liaoning Province in northeastern China. The newly discovered animal, Maotherium asiaticus, comes from famous fossil-rich beds of the Yixian Formation. This new remarkably well preserved fossil, as reported in the October 9 issue of the prestigious journal Science, offers an important insight into how the mammalian middle ear evolved. The discoveries of such exquisite dinosaur-age mammals from China provide developmental biologists and paleontologists with evidence of how developmental mechanisms have impacted the morphological (body-structure) evolution of the earliest mammals and sheds light on how complex structures can arise in evolution because of changes in developmental pathways. http://www.physorg.com/news174230741.html Other Sciences Thu, 08 Oct 2009 14:27:44 EST news174230741 (PhysOrg.com) -- A new investigation of a fossilized tracksite in southern Africa shows how early dinosaurs made on-the-fly adjustments to their movements to cope with slippery and sloping terrain. Differences in how early dinosaurs made these adjustments provide insight into the later evolution of the group. http://www.physorg.com/news174057636.html Other Sciences Tue, 06 Oct 2009 17:50:02 EST news174057636 French researchers on Tuesday said they had uncovered the biggest dinosaur footprints in the world, left by giant sauropods that may have weighed 40 tonnes or more. http://www.physorg.com/news174052014.html Other Sciences Tue, 06 Oct 2009 13:20:04 EST news174052014 (PhysOrg.com) -- You don't have to be a paleontologist to suppose that way back when dinosaurs roamed the Earth chances were good meat eaters would dined on one of their own. Short of a time-machine trip back 70 million years, however, supposing dinosaur cannibalism and proving it are two different stories. http://www.physorg.com/news173982689.html Other Sciences Mon, 05 Oct 2009 17:31:56 EST news173982689 (AP) -- A fossilized Tyrannosaurus rex is still looking for a home after bidders failed to meet the minimum price Saturday at a Las Vegas auction. http://www.physorg.com/news173874646.html Other Sciences Sun, 04 Oct 2009 11:31:01 EST news173874646 The asteroid impact that many researchers claim was the cause of the dinosaur die-off was bad news for marine life at the time as well. But new research shows that microalgae - one of the primary producers in the ocean - bounced back from the global extinction in about 100 years or less. http://www.physorg.com/news173713660.html Space & Earth Fri, 02 Oct 2009 15:10:01 EST news173713660 (PhysOrg.com) -- Geologists have discovered hundreds of fossilized nests each containing clutches of eight dinosaur eggs. The eggs were located in sand banks in Tamil Nadu in Southern India. http://www.physorg.com/news173683554.html Other Sciences Fri, 02 Oct 2009 10:00:01 EST news173683554 (PhysOrg.com) -- Chinese scientists today reveal the discovery of five remarkable new feathered dinosaur fossils which are significantly older than any previously reported. The new finds are indisputably older than Archaeopteryx, the oldest known bird, at last providing hard evidence that birds evolved from dinosaurs. http://www.physorg.com/news173079035.html Other Sciences Fri, 25 Sep 2009 06:31:08 EST news173079035 A dinosaur-killing asteroid may have wiped out much of life on Earth 65 million years ago, but now scientists have discovered how smaller organisms might have survived in the darkness following such a catastrophic impact. http://www.physorg.com/news171819166.html Space & Earth Thu, 10 Sep 2009 16:33:46 EST news171819166 (PhysOrg.com) -- A creature dubbed a "Giraffe of the Mesozoic" has been discovered in China. The animal, with its giraffe-like long neck and long forelimbs is the first well-preserved Early Cretaceous brachiosaurid dinosaur to be discovered in Asia. It lived about 100 million years ago. http://www.physorg.com/news171612710.html Other Sciences Tue, 08 Sep 2009 07:12:46 EST news171612710 After years spent hunting for the buried remains of prehistoric animals, a Canadian paleontologist now plans to manipulate chicken embryos to show he can create a dinosaur. http://www.physorg.com/news170426405.html Other Sciences Tue, 25 Aug 2009 13:40:40 EST news170426405 Two titans fighting a bloody battle -- that often turns fatal for both of them. This is how big predatory dinosaurs like Tyrannosaurus are often depicted while hunting down their supposed prey: even larger herbivorous dinosaurs. The fossils, though, do not account for that kind of hunting behavior but indicate that theropods, the large predatory dinosaurs, were frying much smaller fish. http://www.physorg.com/news168793217.html Other Sciences Thu, 06 Aug 2009 16:01:04 EST news168793217 (PhysOrg.com) -- Scientists have debated how many mass extinction events in Earth's history were triggered by a space body crashing into the planet's surface. Most agree that an asteroid collision 65 million years ago brought an end to the age of dinosaurs, but there is uncertainty about how many other extinctions might have resulted from asteroid or comet collisions with Earth. http://www.physorg.com/news168183769.html Space & Earth Thu, 30 Jul 2009 15:30:01 EST news168183769 (PhysOrg.com) -- Evidence buried in the chromosomes of animals and plants strongly suggests only one group -- mammals -- have seen their genomes shrink after the dinosaurs' extinction. What's more, that trend continues today, say Indiana University Bloomington scientists in the first issue of a new journal, Genome Biology and Evolution. http://www.physorg.com/news167935854.html Biology Mon, 27 Jul 2009 19:50:01 EST news167935854 (AP) -- Hundreds of tiny footprints left by mammals some 190 million years ago have been found on a canyon wall in a remote part of Dinosaur National Monument, park officials said Thursday. http://www.physorg.com/news167636939.html Other Sciences Fri, 24 Jul 2009 07:20:01 EST news167636939 Internationally renowned palaeontologist and Monash University Honorary Research Associate, Dr Anthony Martin has found evidence of a dinosaur burrow along the coast of Victoria, which helps to explain how dinosaurs protected themselves from climate extremes during the Cretaceous period - the final era for dinosaurs before their extinction. http://www.physorg.com/news166972486.html Other Sciences Thu, 16 Jul 2009 14:15:08 EST news166972486 On the heels of his discovery in Montana of the first trace fossil of a dinosaur burrow, Emory University paleontologist Anthony Martin has found evidence of more dinosaur burrows - this time on the other side of the world, in Victoria, Australia. The find, to be published this month in Cretaceous Research, suggests that burrowing behaviors were shared by dinosaurs of different species, in different hemispheres, and spanned millions of years during the Cretaceous Period, when some dinosaurs lived in polar environments. http://www.physorg.com/news166471265.html Other Sciences Fri, 10 Jul 2009 19:20:01 EST news166471265 New evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous - a period of greenhouse conditions - gives a glimpse of how the Arctic is likely to respond to future global warming. http://www.physorg.com/news166355359.html Space & Earth Thu, 09 Jul 2009 10:49:50 EST news166355359 Australian scientists hailed the country's most significant dinosaur discovery in decades on Friday after three new species were unearthed in a Queensland billabong. http://www.physorg.com/news165816652.html Other Sciences Fri, 03 Jul 2009 05:11:24 EST news165816652 (PhysOrg.com) -- Scientists from The University of Manchester have identified preserved organic molecules in the skin of a dinosaur that died around 66-million years ago. http://www.physorg.com/news165682506.html Other Sciences Wed, 01 Jul 2009 15:55:50 EST news165682506 (PhysOrg.com) -- For millions of years, dinosaurs have been considered the largest creatures ever to walk on land. While they still maintain this status, a new study suggests that some dinosaurs may actually have weighed as little as half as much as previously thought. http://www.physorg.com/news165147675.html Other Sciences Thu, 25 Jun 2009 11:21:56 EST news165147675 (PhysOrg.com) -- Researchers at the University of Florida and the University of Winnipeg have developed the first detailed images of a primitive primate brain, unexpectedly revealing that cousins of our earliest ancestors relied on smell more than sight. http://www.physorg.com/news164909938.html Other Sciences Mon, 22 Jun 2009 17:19:39 EST news164909938 Researchers from the Teruel-Dinópolis Joint Palaeontology Foundation have compared an Allosauroidea tooth found in deposits in Riodeva, Teruel, with other similar samples. The palaeontologists have concluded that this is the largest tooth of a carnivorous dinosaur to have been found to date in Spain. http://www.physorg.com/news164883388.html Other Sciences Mon, 22 Jun 2009 09:56:59 EST news164883388 The largest animals ever to have walked the face of the earth may not have been as big as previously thought, reveals a paper published today in the Zoological Society of London's Journal of Zoology. http://www.physorg.com/news164866282.html Other Sciences Mon, 22 Jun 2009 05:11:48 EST news164866282 James Clark, the Ronald B. Weintraub Professor of Biology in The George Washington University's Columbian College of Arts and Sciences, and Xu Xing, of the Chinese Academy of Science's Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, have discovered a unique beaked, plant-eating dinosaur in China. This finding demonstrates that theropod, or bird-footed, dinosaurs were more ecologically diverse in the Jurassic period than previously thought and offers important new evidence about how the three-fingered hand of birds evolved from the hand of dinosaurs. The discovery is featured in this week's edition of the journal Nature. http://www.physorg.com/news164468157.html Other Sciences Wed, 17 Jun 2009 15:10:06 EST news164468157 Plants or meat: That's about all that fossils ever tell paleontologists about a dinosaur's diet. But the skull characteristics of a new species of parrot-beaked dinosaur and its associated gizzard stones indicate that the animal fed on nuts and/or seeds. These characteristics present the first solid evidence of nut-eating in any dinosaur. http://www.physorg.com/news164453804.html Other Sciences Wed, 17 Jun 2009 10:36:56 EST news164453804 Researchers at Oregon State University have made a fundamental new discovery about how birds breathe and have a lung capacity that allows for flight - and the finding means it's unlikely that birds descended from any known theropod dinosaurs. http://www.physorg.com/news163760732.html Other Sciences Tue, 09 Jun 2009 10:06:02 EST news163760732 (AP) -- Scientists at one of Utah's major new dinosaur quarries have found 60 to 70 new bones this spring, including what appears to be a 20-foot-long neck bone discovered this week. http://www.physorg.com/news163395992.html Other Sciences Fri, 05 Jun 2009 04:46:57 EST news163395992 Some dinosaurs may have held their heads up, like a giraffe, rather than in a more horizontal position, University of Portsmouth scientists report today. http://www.physorg.com/news162653613.html Other Sciences Wed, 27 May 2009 14:34:15 EST news162653613 (PhysOrg.com) -- The discovery of a gruesome feeding frenzy that played out 73 million years ago in northwestern Alberta may also lead to the discovery of new dinosaur species in northwestern Alberta. http://www.physorg.com/news161355788.html Other Sciences Tue, 12 May 2009 14:04:26 EST news161355788