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Study: More credit due to Neanderthals

disclaimer: image is for illustration purposes only
by Staff Writers
Denver (UPI) Sep 21, 2010
The long-held belief that Neanderthal man developed "modern" tools only through contact with more advanced Homo sapiens is wrong, a U.S. researcher says.

Julien Riel-Salvatore, assistant professor of anthropology at the University of Colorado, Denver, has challenged a half-century of conventional wisdom maintaining that Neanderthals were thick-skulled, primitive "cavemen" overrun and outcompeted by more advanced modern humans arriving in Europe from Africa, a university release says.

"Basically, I am rehabilitating Neanderthals," Riel-Salvatore says. "They were far more resourceful than we have given them credit for."

Riel-Salvatore identified projectile points, ochre, bone tools, ornaments and possible evidence of fishing and small game hunting at archaeological sites associated with a culture of people knows as the Uluzzian throughout southern Italy.

They emerged in an area geographically separated from modern humans.

"My conclusion is that if the Uluzzian is a Neanderthal culture it suggests that contacts with modern humans are not necessary to explain the origin of this new behavior," Riel-Salvatore says.

"This stands in contrast to the ideas of the past 50 years that Neanderthals had to be acculturated to humans to come up with this technology," he said.

"When we show Neanderthals could innovate on their own it casts them in a new light. It 'humanizes' them if you will."

earlier related report
Scientists construct T. rex family tree
New York (UPI) Sep 21, 2010 - There's a lot more to Tyrannosaurs as a species than just the T. rex that captures the public attention and imagination, U.S. scientists say.

A decade of new fossil discoveries that have more than doubled the number of known tyrannosaur species has changed perceptions of the huge dinosaur with the tiny arms, a release from the American Museum of Natural History says.

Older and smaller tyrannosaurs have made the evolutionary tree of this group richer and more complex, and innovative research has added an enormous amount of information about tyrannosaurs, so much so that the group could now be considered an exemplar for paleontology research, scientists say.

"T. rex is the most iconic of all dinosaurs," Mark Norell, curator in the Division of Paleontology at the museum, says. "Its star power has allowed a research focus into questions not normally undertaken with fossils, questions like bone growth, biomechanics, and neurology."

"We know more about tyrannosaurs than any other group of dinosaurs -- even more than some groups of living organisms," Stephen Brusatte, a graduate student affiliated with the museum, said.

"Over the past year, five new species of tyrannosaurs have been described, and over the last ten years we have found the oldest and smallest members of the group," he said. "Now we can understand the family tree of tyrannosaurs in unprecedented detail.

"T. rex is really just the tip of the iceberg of tyrannosaur diversity, and honestly, is quite abnormal when compared with other members of the group. For most of their evolutionary history, tyrannosaurs were small and living in the shadow of other giant apex predators," Brusatte said.

"They stayed small until the end of the Cretaceous -- the final 20 million years of dinosaur history."

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