Tag: "prehistoric" at biology news
Growing pains: T. Rex was teenage giant
...ton dinosaur eating machine with few rivals in the prehistoric
kingdom, according to FSU biologist Gregory Erickson. At the peak of this spurt, T. rex grew more than 4.5 pounds a day. Erickson and his team of paleontologists are the first to establish an accurate picture of how T. rex accelerated its g...
Droughts like 1930s Dust Bowl may have been unexceptional in prehistoric times, new study suggests
...esearch team led by Duke University. Some of those prehistoric
droughts in the northern Great Plains of what is n...ost-doctoral investigator Kendrick Brown evaluated prehistoric
charcoal deposits. Joe Donovan, a geophysicist at the University of West Virginia, studied the geoch...
Earliest evidence of hereditary genetic disorder discovered by Hebrew University researchers
... is the first recorded evidence from such an early prehistoric
period of a hereditary disorder in which the speci...hereditary diseases that have come down to us from prehistoric
ancestors and which are yet to be discovered in fossil remains. Amelogenesis imperfecta is a he...
Stonehenge study tells pagans and historians it's good to talk
... the current redevelopment plans. For many pagans, prehistoric
sites are not ruins but living temples or sacred sites. They feel drawn to these places to perform seasonal rituals or to observe astronomical events. Many pagans, including Druids, accept the 'preservation ethos', regarding such things as stone circ...
Pearly mussels: One of North America's natural jewels is disappearing
... shells, humans have appreciated the animals since prehistoric
times. Coveted for their pearls and mother-of-pearl shells; their meat has been a resource for both humans and wildlife. In a BioScience paper published this week, a team of scientists report that something troubling has been happening in our nation'...
Phytoplankton may stimulate uptake of CO2
...oxide to organic carbon, and there appears to be a prehistoric
relationship between iron in the ocean and atmospheric levels of carbon dioxide. Burke Hales, an assistant professor in the College of Oceanic and Atmospheric Sciences at Oregon State University, is one of a number of scientists who collaborated on ...
UC San Diego bioinformatics experts help reconstruct the genomic makeup of our ancestors
...unrealistic reconstructions of dinosaurs and other prehistoric
animals on movie screens and in toy stores, this is the first rigorous reconstruction of the genomic makeup of our mammalian ancestors." Pevzner and Tesler are among the more than 200 co-authors of the Nature article, and expanded on their part of th...
USGS March science picks
...ed at establishing the relations of historical and prehistoric
impacts of land use and climate change on landscape conditions in the Tsezhin Bii' region of the Navajo Nation; to discriminate between the impacts of climate change and land-use; and to determine the relation and extent to which uranium and arsenic,...
Paleofire database puts fire-scar and charcoal data online
...gists who discussed how to merge the two different prehistoric
fire records. "I think the workshop really brought to everyone's attention how much data are available now," Whitlock said. "We're hoping the various labs will be willing and enthusiastic to contribute their data to this international effort." So far...
Penguin bones from 'land of fire' rewrite bird's evolution
...from previous discoveries about penguins and their prehistoric
travels. Despite the popular association of penguins with cold polar regions, said Clarke, species of the birds live near the equators as well. The earliest penguins, then, might have developed in warmer climates, and slowly adapted as their habitats...
Earliest evidence of humans affecting aquatic ecology in Canada, United States
... University of Ottawa show for the first time that prehistoric
Inuit whalers dramatically altered high Arctic pon...y on Somerset Island in the Canadian Arctic, where prehistoric
Thule whalers (ancestors of the present day Inuit) had the highest concentration of settlement betwe...
Dinosaur symposium at the Smithsonian Institution
...the origin of flowers, ancient plants and flowers, prehistoric
insects, and the extinction of dinosaurs. Visitors may also enjoy the museum's Dinosaur Hall, eating at the Fossil Caf, or shopping at the TriceraShop, a special museum shop devoted to dinosaur-related toys, clothing, books and more. The Smithsonian...
Bad Mileage: 98 tons of plants per gallon
...and lakebeds; and natural gas from those and other prehistoric
environments. Then he examined the efficiency at which prehistoric
plants were converted by heat, pressure and time into peat or other carbon-rich sediments. Next, Du...
Built-in eyeshade offers clue to prehistoric past
A new, rare fossil of a prehistoric
sea creature bearing eyes like "twin towers" sheds light on how it lived more than 395 million years ago, says a University of Alberta researcher. Dr. Brian Chatterton, one of the world's leading experts on trilobites and a professor in the U of A's ...
Borneo elephants: A high priority for conservation
...d species. With scant fossil evidence supporting a prehistoric
presence, scientists could not say for sure where Borneo's elephants came from. Did they descend from ancient prototypes of the Pleistocene era or from modern relatives introduced just 300500 years ago? That question, as Fernando et al. report in an ...
Widespread cannibalism may have caused prehistoric prion disease epidemics, Science study suggests
...h may have been a fairly regular menu item for our prehistoric
ancestors, according to researchers. They say it's...mutations, or "polymorphisms," could have provided prehistoric
humans a better chance of surviving epidemics of prion diseases, similar to modern day diseases such...
Science picks -- leads, feeds and story seeds (February 2003)
...a may help to extend the seismic history back into prehistoric
times. Paul Carrara ( firstname.lastname@example.org ) 303-236-1287 Where is Kryptonite When You Need it ! When non-native species invade an area, they can edge out native species because they have fewer parasites and less illness to contend with, according to...
Prehistoric NW Indians hunted fur seals of sustainable basis
Archaeological evidence from prehistoric
hunters in Washington and Alaska adds new fuel to ...re 800-year sequence at Ozette, an indication that prehistoric
hunting did not significantly affect fur seal populations levels over the time period he examined. ...
Early mammals used pelvic bones to trot, study finds
...ct that the development of epipubic bones made the prehistoric
creatures more mobile. The increased locomotion made them better predators, helped them to escape predators and allowed them to forage more widely. "Locomotion contributed heavily to the evolution of mammals," Reilly said, "and these bones had someth...
New study suggests missing link that explains how dinosaurs learned to fly
...hat WAIR in modern-day birds is a remnant of their prehistoric
ancestors. "In the proto-bird, this behavior would have represented the intermediate stage in the development of flight-capable, aerodynamic wings." Further re-orientation of the wings could then allow birds to make successful ascents into the air a...
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