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Tag: "wild" at biology news

Seals protect brain, conserve oxygen by turning off shivering response on icy dives

...r time at sea underwater, he said. Seals in the wild occasionally dive for so long that they use nearly all their oxygen, but they can recover with these special adaptations. Humans cannot tolerate oxygen levels nearly so low as a seal can. "Somehow they tolerate hypoxia better, we don't know why," ...

Wild gorillas carriers of a SIV virus close to the AIDS virus

...a simian immunodeficiency virus (SIV) infection in wild gorillas. Samples of faeces collected from differe...ies. This discovery of an HIV-1 related virus in wild gorillas does not, however, call into question the fact that chimpanzees are the primary reservoir o...

Ebola-outbreak kills 5000 gorillas

...for controlling the devastating impact of Ebola on wild gorilla and chimpanzee populations. Since reports ...e and effective way of delivering Ebola vaccine to wild apes." Walsh contends that Ebola vaccination is a cost effective method of ape conservation. "Peo...

Vanishing beetle horns have surprise function

The function of horned beetles' wild protrusions has been a matter of some consternation for biologists. Digging seemed plausible; combat and mate selection, more likely. Even Charles Darwin once weighed in on the matter, suggesting -- one imagines with some frustration -- the horns wer...

British cattle give TB to badgers, finds UC Davis expert

The controversial practice of killing wild badgers to prevent tuberculosis in cattle is unlikely to succeed, according to a newstudy led by Rosie Woodroffe, an ecologist at the University ofCalifornia, Davis, and a member of Britain's Independent Scientific Group on Cattle TB. In Britain, fa...

Scientists crack rhino horn riddle

...can understand and manage rhino populations in the wild and in captivity," said Lawrence Witmer, a professor of anatomy in Ohio University's College of Osteopathic Medicine and director of the project. ...

Salmon farms kill wild fish, study shows

...search confirms that sea lice from fish farms kill wild salmon. Up to 95 per cent of the wild juvenile salmon that migrate past fish farms die as a result of sea lice infestation from the farms....

NASA snow data helps maintain nation's largest, oldest bison herd

...od. We now have a much better idea when to release wild bison and expect winter ranges to become accessible for the bison during the critical late winter period." "The National Park Service is not a traditional user of NASA information," said Watson. "But this is a great opportunity to use NASA technol...

Over a century after disappearing, wild elk return to Ontario

...m Ontario due to over hunting in the 19th century, wild elk have returned to the province thanks to the efforts of the Ontario elk restoration program. According to a report on the program’s success, published in the March issue of Restoration Ecology, 460 elk were brought from Alberta and released in var...

Billions of dollars saved in US by polio vaccination

... Although the last case of paralytic polio from wild poliovirus occurred in the U.S. in 1979, polioviru...ted that, "as we stand on the brink of eliminating wild polioviruses around the world, these results provide a glimpse of the massive economic benefits of g...

Mother knows best: Plant knowledge key to childhood health in remote Amazon

...ewood, construction and food. The Tsimane' rely on wild and domesticated plants for more than half of their household consumption, while purchased goods account for a tiny fraction of consumption. "Like other remote rural populations around the world, the Tsimane' must rely on their ability to exploit...

Update on census of world's most endangered cat -- Female Amur leopard found dead

..., with just seven female Amur leopards left in the wild and four rearing cubs. Now we’ve lost a mature, reproductive leopardess and her potential cubs in a senseless killing. This is the third leopard killed within this area over the last five years and underscores the desperate need for a unified protect...

Will the plague pathogen become resistant to antibiotics?

...ella and E. coli have been found in droppings from wild geese, raising the possibility that wild animals might be able to spread MDR far beyond the livestock where it originated, Ravel notes. "W...

Researchers find 6,000-year-old fossil evidence

...ter studying the starches of many domesticated and wild plants, Perry determined that the mystery starch was a chili pepper. "We knew from historic and ethnographic records that people were eating domesticated chili peppers, but this archaeological evidence confirms those findings. It also shows us tha...

Scripps research team discovers a chemical pathway that causes mice to overeat and gain weight

...ental mice were clearly getting heavier than their wild type litter mates, the control mice," says Sanchez-Alavez. "We realized there was something interesting going on with these animals, so we started watching their behavior at night and during the day." During continuous monitoring of temperature an...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

... stimulating the immune system with derivatives of wild type ?or non-altered ?p53, a tumor suppressor gene. Loss of suppressor function or alteration of the p53 gene factors into nearly 80 percent of human tumors. Tumor cells with altered p53 generally tend to accumulate the protein, which led the researc...

Ebola outbreaks killing thousands of gorillas and chimpanzees

...s could control the devastating impact of Ebola on wild apes. Direct encounters between gorilla or chimpanzee social groups are rare. Therefore, when reports of large ape die-offs first surfaced in the late 1990s, outbreak amplification was assumed to be through "massive spillover" from some unknown res...

Manipulating nature: Scientists query wildlife birth-control method

... these effects, altering the genetic capacity of a wild population to mount immune responses should not be permitted. "The third concern is that animals are suffering side-effects from multiple injections and adjuvant substances (catalysts that modify the action of other agents) designed to boost the e...

Research on grey mould offers possible breakthrough in tomato cultivation

... its breeding programme. Finkers started off with wild tomato accessions that were resistant to grey mould. When crossing the resistant wild tomato Solanum habrochaites LYC4 with the susceptible S. lycopersicum cv. Moneymaker, he identified ...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...ecies, Hirudo verbana. The study also shows that wild European medicinal leeches are at least three dist...lleagues examined mitochondrial and nuclear DNA of wild leeches from across their range in Europe, as well as from samples supplied by commercial providers ...

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