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Elephants imitate sounds as a form of social communication

...supports the idea that vocal learning is important for maintaining individual social relationships among ...ds, and bats. Researchers from the Amboseli Trust for Elephants in Kenya, the Woods Hole Oceanographic Institution and the University of Vienna studied so...

Highly adaptable genome in gut bacterium key to intestinal health

... says Jeffrey Gordon, M.D., director of the Center for Genome Sciences at Washington University and profe...plies its host with nutrients while obtaining food for itself and other gut bacterial species. The complete genome sequence of B. theta was generated two y...

Researchers find missing genes of ancient organism

...ort in the journal Nature that the "missing" genes for tRNA in an ancient parasite are made up by splicin... primitive, parasitic and extremophile, or notable for living in the most extreme environments. Surprisingly, Söll's team found that, although the genome ...

Amino acids in nectar enhance butterfly fecundity: A long awaited link

...tions about the significance of nectar amino acids for butterfly fitness and insinuated that butterflies have acted as agents of natural selection on nectar composition. In order to determine whether butterflies actually need nectar amino acids, researchers from the University of Basel raised map butte...

Scientists identify genetic pathways essential to RNA interference

... interference (RNAi), a powerful new research tool for inactivating genes in plants or animals. They used...sitely specific, which gives it enormous potential for therapeutic application," says Gary Ruvkun, PhD, of the MGH Department of Molecular Biology, the stu...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...ive but still able to function asa delivery system for proteins from the cancer cells that are to betargeted by the animal’s immune system.The basis for this new vaccine is an RNA virus called VEE, forVenezuelan equine encephalitis, which in its natural...

Ants Genetic Engineering Leads To Species Interdependency

...iven rise to a deep-seated dependency between them for thesurvival of both species populations.The new wo...ation - in this case, the production ofworker ants for both species. Millionsof years before the first modern humans evolved, ants were practicingmany of ...

Same mutation aided evolution in many fish species, Stanford study finds

... shown that the same genetic change is responsible for an evolutionary adaptation in disparate population...shwater lakes and streams, they are an ideal model for understanding how animals adapt to their unique environments. The recent work carries a few surpris...

Papers of DNA Pioneer and Nobel Laureate Francis Crick Added to National Library of Medicine’s Profiles in Science Web Site

...ional Library of Medicine and the Wellcome Library for the History and Understanding of Medicine in Londo...ed by World War II, during which he designed mines for the British navy. After the war he switched from physics to molecular biology, and, with a Medical R...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

... century. The ground-nesting birds made easy meals for the foxes. A study published this week in the jour...n to look lusher. But it is likely to take decades for the ecosystems to fully recover from the effects of the foxes, said James Estes, adjunct professor o...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...he research team. The protein, called GDNF, short for glial cell line-derived neurotrophic factor, is be...neuroprotective concept and would only be amenable for early stage patients to keep a good quality of life. It would be a huge change in the way treatment ...

Researchers trace evolution to relatively simple genetic changes

...that one gene is what makes the difference. "Now, for the first time, we've been able to identify the ac...ook at that gene and say it's an obvious candidate for dramatically changing skeletal structures in wild animals that end up completely viable and healthy,...

Scientists reveal molecular secrets of the malaria parasite

...omedical scientists who areidentifying new targets for vaccines that would impede the parasiteduring stag...eracting with the host as well as new gene targets for vaccines thataim to prevent parasite transmission in the mosquito."The study highlights the genes in...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...that one gene is what makes the difference. "Now, for the first time, we've been able to identify the ac...ook at that gene and say it's an obvious candidate for dramatically changing skeletal structures in wild animals that end up completely viable and healthy,...

Studies reveal methods viruses use to sidestep immune system

...RF-3). This protein turns on the genes responsible for producing interferon, which neutralizes viruses by... PNAS, Dr. Gale and his group found an explanation for HCV's tenaciousness. Once HCV infects the cell, it launches a counterattack against RIG-I, producing...

Development of portable infectious disease detector

...research project.Vanderbilt University's Institute for Integrative Biosystems Researchand Education (VIIB...ls reliably. In the process, the group has applied for more than 12patents. Meanwhile, Pria has developed a micro-optical fluorescence spectroscopysystem ...

Researchers add new tool to tumor-treatment arsenal

...h Institute, and Heidi Lane of Novartis Institutes for Biomedical Research, appears in the March 25, 2005... while working at the Friedrich Miescher Institute for Biomedical Research in Basel, Switzerland, and completed these studies at UC's Genome Research Insti...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

... solved a mystery that has intrigued physiologists for decades: why insects routinely stop breathing for minutes at a time. Challenging previous theories, researchers at UC Irvine and Humboldt University ...

Scientists discover unique microbe in California's largest lake

...California's Salton Sea, using near-infrared light for photosynthesis,according to an article published i...y Professor Stuart Hurlbert,director of the Center for Inland Waters at San Diego State University. ScottMiller, the lead author on the paper, grew the or...

Alcohol's effects on gene expression in the central nervous system

...ork so differently with the same genes ?giving us, for example, unique eyes, skin, or hair ?is that only ...ain, and that these changes are likely responsible for many of the 'symptoms' of addiction, such as tolerance, physical dependence, and craving, as well as...

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