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Tag: "mammal" at biology news

Extinct giant deer's descendant found in UK

...lyse these ancient DNA samples from the bones of a mammal that has been extinct for over 8000 years and show that they are directly related to a living deer ?more importantly we've found its closest living descendant." ...

How fish hear and make sounds at same time

...ournal of Neuroscience. "You don't need to study a mammal to understand what a mammal does." The researchers found that as the fish's brain signals vocal muscles to make sound, a number...

Possible treatment found for 'chemobrain'

... sloth (Bradypus or Choloepus species). The ninth mammal is the Northern white-cheeked gibbon (Nomascus leucogenys). This non-human primate species belongs to a major evolutionary branch that has not yet had the genome of any of its members sequenced. The gibbon genome is unique because it contains many ch...

NHGRI Selects 13 More Organisms for Genome Sequencing

... sloth (Bradypus or Choloepus species). The ninth mammal is the Northern white-cheeked gibbon (Nomascus leucogenys). This non-human primate species belongs to a major evolutionary branch that has not yet had the genome of any of its members sequenced. The gibbon genome is unique because it contains many ch...

Genome Sequence for Haemophilus Influenzae Completed

...rojections. Weisel is continuing these studies of mammal hair in his spare time and has returned to Isle Royale once since his sabbatical, doing radio telemetry of radio-collared wolves and collecting samples of their scat for DNA analysis. "I discovered that it can be very enjoyable and stimulating to ex...

Otter adaptations: How do otters remain sleek and warm

...rojections. Weisel is continuing these studies of mammal hair in his spare time and has returned to Isle Royale once since his sabbatical, doing radio telemetry of radio-collared wolves and collecting samples of their scat for DNA analysis. "I discovered that it can be very enjoyable and stimulating to ex...

UIC researchers show protein routes messages in nerve cells

...e picture." Confirmation of these mechanisms in a mammal such as a mouse or a rat can help researchers understand how nerves need to be reconnected after spinal cord injury, or may open doors to developing drugs that can manipulate proteins that cause neurological diseases in humans. ...

Size matters: Preventing large mammal extinction

...tal new approaches to improve the success of large mammal conservation. Published today in the journal Science, the largest study of its kind analyses key factors linked to the extinction of mammals. "Conservation biologists have always known that large bodied mammals are at greater risk of extinction," co...

Researchers find first evidence of venom system in extinct mammal

...ey now believe is the first evidence of an extinct mammal with a venom delivery apparatus. The research will be published June 23, 2005 in Nature. "Our discovery shows that mammals have been much more flexible in the evolution of venom delivery systems than previously believed," said Fox, who works out of ...

Ocean climate predicts elk population in Canadian Rockies

... between the North Pacific Oscillation (NPO) and a mammal population. Based on many climate-related ocean measurements, researchers are able to determine positive, average and negative NPO values. A positive NPO translates into a milder climate in most of western North America, but it means more severe wea...

Scientists discover odd-ball rodent

... For all we know, this could be the last remaining mammal family left to be discovered," Dr. Timmins said. Very little is known about the Kha-Nyou, other than it seems to prefer areas of limestone outcroppings and forest cover, and it appears to be a nocturnal vegetarian. It also gives birth to one offspri...

Master gene controls healing of skin in fruit flies and mammals

...at, although insect cuticle and the outer layer of mammal skin are very different chemically, the grainyhead...in the molecular composition of insect cuticle and mammal skin. "The proteins that link together to form the insect cuticle and stratum corneum--the outer la...

Undesirable expatriates: Preventing the spread of invasive animals

... invasive, Drs. Jeschke and Strayer analyzed bird, mammal and freshwater fish introductions between Europe and North America. Jeschke comments, "We focused our study on larger vertebrates because there are better historical records about their introductions, which were often done purposefully for human use....

Scientists reveal molecular secrets of the malaria parasite

... evolve mostrapidly when they are expressed in the mammal hosts (human/mouse). Thatmay represent a mechanism by the parasites to repulse the attack of thehost's immune system. * For the first time, scientists were able tostudy the protein expression of the parasite in the mosquito vector.Researchers hope th...

New Clues Add 40,000 Years to Age of Human Species

...utcrops. The scientists collected hundreds of new mammal fossils that helped differentiate layers of sediment and link the currently dry region to its moister climates of the past. But, precisely dating the outcrops required volcanic minerals with elements that undergo radioactive decay. Brown and McDoug...

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