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CHONGQING Josh Jackson Jersey , March 29 (Xinhua) -- Southwest China's Chongqing city will build a museum featuring history and objects related to weapon production during the country's war against Japanese troops from 1931 to 1945.


The facility, with a planned exhibition area of 12,000 square meters, will be constructed based on the ruins of a wartime ordnance manufacturing site encompassing 25 production units in today's Jiulongpo District.


Over 40,000 exhibits, to be held in eight halls Jaire Alexander Jersey , will debut when the museum opens during National Day holiday in October.


Chongqing used to be a major production base for all kinds of weapons, including cannons, grenades and guns, during the 14-year Chinese People's War of Resistance Against Japanese Aggression starting in 1931.

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WASHINGTON, March 14 (Xinhua) -- Scientists said Monday they have discovered the fossilized remains of a new horse-sized dinosaur that revealed how Tyrannosaurus rex (T. rex) became one of Earth's top predators about 70 to 80 million years ago.


T. rex and its close relatives reached the top of their food chain at the end of the age of dinosaurs, after other groups of large meat-eating dinosaurs had gone extinct about 80 to 90 million years ago.


But little was known about how these fearsome giants evolved from a family of small-bodied dinosaurs known as tyrannosaurs Wholesale Green Bay Packers Jerseys , largely due to a gap in the family's fossil record between 100 and 80 million years ago.


Now, the newly discovered species -- named Timurlengia euotica, which lived about 90 million years ago in today's Uzbekistan, seemed to help solve the mystery.


Timurlengia, named after the 14th-century Central Asian ruler Timurleng, is a tyrannosaur but not the ancestor of the T. rex.


""We had this huge gap in the fossil record Wholesale Packers Jerseys , about a 20-million-year gap,"" study author Hans Sues, chair of the Department of Paleobiology at the Smithsonian's National Museum of Natural History,"" told Xinhua.


""And this is an animal from the new tyrannosaurs from 90 million years ago in Central Asia, and it shows that at that point this animal had already evolved the complicated brain and advanced senses the T. Rex had. But it was in a horse sized animal, and so obviously the brain reorganization happened long before these animals became real giants.""


Sues and a team of palaeontologists Cheap Green Bay Packers Jerseys , led by Steve Brusatte at the University of Edinburgh, studied a collection of tyrannosaur fossils found between 1997 and 2006 in the Kyzylkum Desert, northern Uzbekistan, and discovered the new species.


They found the species' skull was much smaller than that of T. rex, indicating that it did not grow to the same enormous size. However, key features of Timurlengia's skull like large inner ear revealed that it had developed keen senses and cognitive abilities Cheap Packers Jerseys , including the ability to hear low-frequency sounds.


Timurlengia was about the size of a horse, and could weigh up to 250kg. It had long legs and a skull studded with sharp teeth, and was likely a fast runner, researchers said.


The first tyrannosaurs lived around 170 million years ago and were only slightly larger than a human. However, by the late Cretaceous Period -- around 100 million years later -- tyrannosaurs had evolved into animals like T. rex and Albertosaurus, which could weigh more than seven tons.


The fact that the new species was still small some 80 million years after tyrannosaurs first appeared indicated that T. rex developed huge body sizes rapidly at the very end of the group's evolutionary history Bart Starr Packers Jersey , they said.


""The ancestors of T. rex would have looked a whole lot like Timurlengia, a horse-sized hunter with a big brain and keen hearing that would put us to shame. Only after these ancestral tyrannosaurs evolved their clever brains and sharp senses did they grow into the colossal sizes of T. rex. Tyrannosaurs had to get smart before they got big,"" Brusatte said.


The study, published in the U.S. journal Proceedings of the National Academy of Sciences, was funded by the European Commission, National Science Foundation Ty Montgomery Packers Jersey , National Geographic Society and the Russian Scientific Fund