(PhysOrg.com) -- Were dinosaurs slow and lumbering, or quick and agile? It depends largely on whether they were cold or warm blooded. When dinosaurs were first discovered in the mid-19th century, paleontologists thought they ...
Archaeology
Jun 23, 2011
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While adult tyrannosaurs wielded power and size to kill large prey, youngsters used agility to hunt smaller game.
Archaeology
May 9, 2011
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(PhysOrg.com) -- Scientists have identified a new species of gigantic theropod dinosaur, a close relative of T. rex, from fossil skull and jaw bones discovered in China.
Archaeology
Apr 1, 2011
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A new leech species with ferociously large teeth -- recently discovered in noses of children that swam in Peruvian rivers -- is providing insight into the evolutionary relationships among all the leeches that have an affinity ...
Archaeology
Apr 14, 2010
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(PhysOrg.com) -- Scientists from Cambridge, London and Melbourne have found the first ever evidence that tyrannosaur dinosaurs existed in the southern continents. They identified a hip bone found at Dinosaur Cove in Victoria, ...
Archaeology
Mar 25, 2010
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New Mexico is known for amazing local cuisine, Aztec ruins and the Los Alamos National Laboratory. In the January issue of the Journal of Vertebrate Paleontology, paleontologists Thomas Williamson of the New Mexico Museum ...
Archaeology
Feb 1, 2010
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(PhysOrg.com) -- A new ten-year study by US paleontologists suggests that up to a third of dinosaur fossils may have been incorrectly identified as new species, when they are actually juveniles of species in which there was ...
Now, just a few weeks after tiny, early Raptorex kriegsteini was unveiled, a new wrench has been thrown into the family tree of the tyrannosaurs. The new Alioramus altai—a horned, long-snouted, gracile cousin of Tyrannosaurus ...
Archaeology
Oct 5, 2009
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(PhysOrg.com) -- When pondering the demise of a famous dinosaur such as 'Sue,' the mighty Tyrannosaurus rex whose fossilized remains are a star attraction of the Field Museum in Chicago, it is hard to avoid the image of clashing ...
Archaeology
Sep 29, 2009
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A new species of tyrannosaur from southern North America that may the closest known relative of Tyrannosaurus rex is described in a study published in Scientific Reports.
Evolution
Jan 11, 2024
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