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Tag: "cave" at biology news

Searching the depths of the straits of Florida for disease cures

...ay Sal because of its spectacular reefs, extensive cave systems, and abundant sea life, including the elusive whale shark. Harbor Branch scientists are attracted most to its steep topography between about 300 and 3,000 feet, which suggests that they will find the rocky walls that most commonly foster dive...

Neandertal femur suggests competition with hyenas and a shift in landscape use

...that the human femur fragment found in 2002 in the cave of the Rochers-de-Villeneuve comes from a Neandert...ance of modern humans in Europe. In addition, the cave was a hyena den at about the same time that the humans lived in it, the authors say. Archeological e...

Once-dreaded leprosy 'replaced' by tuberculosis, say researchers

... from a body discovered in a 1st century CE burial cave in Jerusalem. This prompted the investigators to re-examine DNA samples from other ancient sites that they and their colleagues had worked on previously. In doing so, they found leprosy and tuberculosis bacteria in remains from a 4th century CE Egypt...

Extinct giant deer's descendant found in UK

...ith prehistoric man and is the subject of numerous cave drawings - has its DNA in common with the fallow deer, one of the most widespread deer in the UK since their introduction by the Normans in the eleventh century. The results, published online by Nature , contradict recent morphological studies (lo...

Study Holds Promise For New Way To Fight HIV

...ith prehistoric man and is the subject of numerous cave drawings - has its DNA in common with the fallow deer, one of the most widespread deer in the UK since their introduction by the Normans in the eleventh century. The results, published online by Nature , contradict recent morphological studies (lo...

Genetic analysis of cavefish reveals more about evolution

...d in many species independently, however, and each cave species can be considered a replicate of the same ...ions of the chromosomes that had genes controlling cave related traits. The researchers found that genetic markers for albinism in the two groups appeared ...

New study pinpoints epicenters of Earth's imminent extinctions

...sites. These include Torrey Pines in California, a cave in West Virginia, a pond in Mississippi, and six sites in Hawaii. The whooping crane and the recently rediscovered ivory-billed woodpecker are two spectacular American species that qualify for inclusion. Particular concentrations of sites are also fo...

Pretreating rogue cancer cells with aspirin cripples their resistance to targeted therapy

...sites. These include Torrey Pines in California, a cave in West Virginia, a pond in Mississippi, and six sites in Hawaii. The whooping crane and the recently rediscovered ivory-billed woodpecker are two spectacular American species that qualify for inclusion. Particular concentrations of sites are also fo...

Ancient DNA provides clues to the evolution of social behavior

...nt species lived in a roughly 3-mile radius of the cave at any given time. Using modern and ancient DNA f...iabilis, was gradually crowded out of the northern cave area by a larger species of tuco-tuco, C. haigi. Around 3,000 years ago, C. sociabilis disappeared e...

NAU researchers chirping over discovery of new cricket genus

... Service researcher have discovered a new genus of cave cricket. J. Judson "Jut" Wynne, an NAU graduate student and cave research scientist with U.S. Geological Survey's Southwest Biological Science Center, and Kyle Voyle...

Extreme environment changes fish appearance

...y pool, 20 meters long and three meters wide, in a cave entrance in Death Valley, Calif. But their environment is not only cramped: it also has a profound effect on the fishes' appearance, raising questions about how rare species can be protected from extinction. In 1976, the inch-long fish was at the ce...

Tulane researcher reports on origin of deadly fever outbreak

Bats or other cave dwelling animals may have been responsible for the deadly 1998?000 outbreak of Marburg hemorrhagic fever among gold miners in the Democratic Republic of the Congo, according to an article in the Aug. 31, 2006, issue of the New England Journal of Medi...

Ancient ape ruled out of man's ancestral line

...e apeman, dubbed Little Foot, were discovered in a cave complex at Sterkfontein by a local South African t...ented in hard mineral deposits in the Sterkfontein cave complex which has yielded a number of other ancient finds. It is thought he either fell down a shaft...

Fishy cooperation

...a grouper signal to a giant moray eel resting in a cave by shaking its head in front of the moray in this video.) ...

DNA analysis reveals rapid population shift among Pleistocene cave bears

Studying DNA obtained from teeth of ancient cave bears, researchers have been able to identify a sh...ll Press. To investigate the stability of ancient cave bear populations over time, the researchers obtained DNA samples from 29 cave bear teeth from three ...

40,000-year-old skull shows both modern human and Neandertal traits

...ene bone bed principally containing the remains of cave bears. They were recovered during a systematic excavation project directed by Professor Trinkaus and Professor Zilhao between 2003 and 2005. Radiocarbon dating of the specimen produced only a minimum age (more than 35,000 years), but similarity in...

Discovery of new cave millipedes casts light on Arizona cave ecology

...h the Department of Biological Sciences at NAU and cave research scientist with the U.S. Geological Survey...rand Canyon. Wynne and Voyles, known for their cave research, also discovered a new genus of cricket last spring. "We knew the millipedes likely re...

UI anthropologist, colleagues discover remains of earliest giant panda

...t 18 months ago in a south China karst (limestone) cave by Chinese researchers and co-authors Changzhu Jin...ns to return to China this November to explore new cave sites in collaboration with Chinese colleagues. A Fellow of the American Association for the Advance...

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(Date:10/31/2014)... out of a nagging mystery about the development of animal ... why animal species didn,t flourish sooner, once sufficient oxygen covered ... of the Proterozoic period, about 800 million years ago — ... researchers think there also was plenty of oxygen? , Well, ... , In a study published Oct. 30 in Science ...
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