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. Mongolia may need to rustle up some more glass cases for its first dinosaur museum after US authorities announced Friday they will hand back a large new collection of stolen fossils. http://phys.org/news287417522.html Other Sciences Fri, 10 May 2013 15:12:11 EST news287417522 The United States on Monday gave back to Mongolia the remains of a 70-million-year-old Tyrannosaurus skeleton stolen from the Gobi desert and sold at auction in New York. http://phys.org/news287074937.html Other Sciences Mon, 06 May 2013 16:02:23 EST news287074937 Here's a test of your dinosaur knowledge: Did Tyrannosaurus rex stand upright, with its tail on the ground? http://phys.org/news280757283.html Other Sciences Fri, 22 Feb 2013 12:08:10 EST news280757283 Outsized jaw muscles allow the black piranha to exert bite force equivalent to 30 times its bodyweight, a feat unmatched in the natural world, according to results of a finger-risking study published Thursday. http://phys.org/news275224569.html Other Sciences Thu, 20 Dec 2012 11:16:31 EST news275224569 An international team of scientists, including PhD student Stephan Lautenschlager and Dr Emily Rayfield of the University of Bristol, found that the senses of smell, hearing and balance were well developed in therizinosaurs and might have affected or benefited from an enlarged forebrain. These findings came as a surprise to the researchers as exceptional sensory abilities would be expected from predatory and not necessarily from plant-eating animals. http://phys.org/news275157577.html Other Sciences Wed, 19 Dec 2012 17:00:07 EST news275157577 Chicago's renowned Field Museum, a major center of global scientific research, has announced plans to cut staff scientists and curators, overhaul operations and limit its research scope because of a high debt load and the recent U.S. recession. http://phys.org/news275137500.html Other Sciences Wed, 19 Dec 2012 11:05:13 EST news275137500 (AP)—A dinosaur skull seized from a Wyoming home is related to an investigation into fossil smuggling from Mongolia, indicating that efforts to stem the illegal trade are making progress, an attorney said Monday. http://phys.org/news273775439.html Other Sciences Mon, 03 Dec 2012 17:10:01 EST news273775439 Every kid knows that giant carnivores like Tyrannosaurus rex dominated the Cretaceous period, but they weren't the only big guys in town. Giant plant-eating theropods – close relatives of both T. rex and today's birds – also lived and thrived alongside their meat-eating cousins. Now researchers have started looking at why dinosaurs that abandoned meat in favor of vegetarian diets got so big, and their results may call conventional wisdom about plant-eaters and body size into question. http://phys.org/news273300289.html Other Sciences Wed, 28 Nov 2012 04:44:56 EST news273300289 They aren't your grandpa's dinosaurs. Feathered, far-flung and far more complicated, dinosaurs as revealed by today's technology look quite unlike the dumpy denizens of old-time dioramas. http://phys.org/news272567626.html Other Sciences Mon, 19 Nov 2012 17:40:02 EST news272567626 (AP)—When the new Perot Museum of Nature and Science opens, visitors will be able to feel the ground shake beneath them in an earthquake simulation, program a robot to navigate a maze and even test their speed against a virtual Tyrannosaurus rex. http://phys.org/news272127041.html Other Sciences Wed, 14 Nov 2012 14:50:49 EST news272127041 (Phys.org)—Paleontologist Denver Fowler has told a group of attendees at the Society of Vertebrate Paleontology's annual meeting that he, along with colleagues from the Museum of the Rockies, has uncovered evidence that suggests Tyrannosaurus Rex pulled the head off Triceratops victims to allow access to nutritious neck meat. http://phys.org/news270721644.html Other Sciences Mon, 29 Oct 2012 09:29:50 EST news270721644 The ostrich-like dinosaurs in the original Jurassic Park movie were portrayed as a herd of scaly, fleet-footed animals being chased by a ferocious Tyrannosaurus rex. New research published in the prestigious journal Science reveals this depiction of these bird-mimic dinosaurs is not entirely accurate—the ornithomimids, as they are scientifically known, should have had feathers and wings. http://phys.org/news270396586.html Other Sciences Thu, 25 Oct 2012 15:20:01 EST news270396586 A team of researchers from North Carolina State University and the Palo Alto Research Center (PARC) has found more evidence for the preservation of ancient dinosaur proteins, including reactivity to antibodies that target specific proteins normally found in bone cells of vertebrates. These results further rule out sample contamination, and help solidify the case for preservation of cells – and possibly DNA – in ancient remains. http://phys.org/news270224252.html Other Sciences Tue, 23 Oct 2012 15:50:01 EST news270224252 (Phys.org)—The Cretaceous-age Hell Creek Formation of Montana is best known for the discovery over a century ago of Tyrannosaurus rex. It also has produced some of the best fossils from the end of the Age of the Dinosaurs about 65 million years ago. At that time, the planet experienced a mass extinction that wiped out many species including non-avian dinosaurs. However, for many mammals, including our own ancestors, this marked a beginning rather than the end. http://phys.org/news270197465.html Other Sciences Tue, 23 Oct 2012 09:30:26 EST news270197465 At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that was the size of a school bus and tipped the scales at more than eight tons. http://phys.org/news257316386.html Other Sciences Sun, 27 May 2012 13:00:02 EST news257316386 Argentine experts have discovered the near-complete remains of a new species of Jurassic-era dinosaur that stood on its rear legs and had tiny arms, according to a leading paleontologist. http://phys.org/news257133644.html Other Sciences Fri, 25 May 2012 03:01:02 EST news257133644 The stubby arms of Tyrannosaurus rex obviously weren't designed for hand-to-hand combat. However, the abelisaurids of the Southern hemisphere were even less well equipped in that department–and upper limb reduction began very early in their evolution. http://phys.org/news256965600.html Other Sciences Wed, 23 May 2012 04:21:20 EST news256965600 The discovery of a giant meat-eating dinosaur sporting a downy coat has some scientists reimagining the look of Tyrannosaurus rex. http://phys.org/news252767446.html Other Sciences Wed, 04 Apr 2012 14:10:52 EST news252767446 Using a combination of guillotine-based experiments and cutting-edge computer modelling, researchers at the University of Bristol have explored the most efficient ways for teeth to slice food. Their results, published today in Journal of the Royal Society Interface, show just how precisely the shape of an animal's teeth is optimized to suit the type of food it eats. http://phys.org/news250274942.html Biology Tue, 06 Mar 2012 19:00:05 EST news250274942 Research at the University of Liverpool, using computer models to reconstruct the jaw muscle of Tyrannosaurus rex, has suggested that the dinosaur had the most powerful bite of any living or extinct terrestrial animal. http://phys.org/news249670753.html Other Sciences Tue, 28 Feb 2012 19:00:01 EST news249670753 One of the most prominent features of life-size, museum models of Tyrannosaurus rex, is its fearsome array of flesh-ripping, bone-crushing teeth. http://phys.org/news249671101.html Other Sciences Tue, 28 Feb 2012 17:05:11 EST news249671101 (PhysOrg.com) -- A meat-eating dinosaur that terrorized its plant-eating neighbours in South America was a lot deadlier than first thought, a University of Alberta researcher has found. http://phys.org/news237878138.html Other Sciences Sat, 15 Oct 2011 06:15:47 EST news237878138 (PhysOrg.com) -- How does one prove that the protein isolated from a 68-million-year-old dinosaur bone is not a contamination from the intervening millenia or from the lab? http://phys.org/news230890934.html Chemistry Tue, 26 Jul 2011 09:22:53 EST news230890934 Dinosaurs have captivated the public for decades, but a new US exhibit aims to show that there is still much about the giant reptiles that baffles experts and amateurs alike. http://phys.org/news229399814.html Other Sciences Sat, 09 Jul 2011 03:10:52 EST news229399814 (PhysOrg.com) -- In a new study, biochemist James San Antonio and colleagues offer evidence to support the claims by Mary Higby Schweitzer back in 2005, that she and her colleagues had unearthed a soft tissue specimen that belonged to a Tyrannosaurus rex. Roundly criticized by many in the science community, the specimen, discovered inside a femur fragment, has yet to be proven to be anything else. Now, in a paper published on PLoS ONE, San Antonio and his colleagues (including Mary Schweitzer) claim they’ve found a plausible explanation for the survival of soft dinosaur material after some 68 million years. http://phys.org/news227351943.html Chemistry Wed, 15 Jun 2011 10:20:15 EST news227351943 The ferocious Tyrannosaurus rex has been depicted as the top dog of the Cretaceous, ruthlessly stalking herds of duck-billed dinosaurs and claiming the role of apex predator, much as the lion reigns supreme in the African veld. http://phys.org/news217601776.html Other Sciences Tue, 22 Feb 2011 12:56:36 EST news217601776 (PhysOrg.com) -- A team of paleontologists and geologists from Argentina and the United States on Jan. 13 announced the discovery of a lanky dinosaur that roamed South America in search of prey as the age of dinosaurs began, approximately 230 million years ago. http://phys.org/news214150783.html Other Sciences Thu, 13 Jan 2011 14:20:12 EST news214150783 Experiments by a team of researchers in New York and New Jersey have generated evidence that questions the common belief that the pterygotid eurypterids ("sea scorpions") were high-level predators in the Paleozoic oceans. http://phys.org/news212259518.html Biology Wed, 22 Dec 2010 17:10:01 EST news212259518 Field Museum scientists used statistical analyses to determine the diet of 90 species of theropod dinosaurs. Their results challenge the conventional view that nearly all theropods hunted prey, especially those closest to the ancestors of birds. http://phys.org/news212081320.html Other Sciences Mon, 20 Dec 2010 15:29:24 EST news212081320 (PhysOrg.com) -- Doubt has been cast over the only known piece of evidence that large carnivorous dinosaurs once roamed Australia, following new research by The University of Queensland (UQ). http://phys.org/news212053591.html Other Sciences Mon, 20 Dec 2010 07:46:59 EST news212053591