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| Biology articles |
Gene-specific ebola therapies protect non-human primates from lethal disease
Scientists have developed a successful strategy for interfering with Ebola virus infection that protected 75 percent of nonhuman primates exposed to the lethal disease. This is the first successful antiviral intervention against filoviruses like Ebola in nonhuman primates.
Penguins waddle but they don't fall down
With their feathery tuxedoes and charming Chilly Willy-waddle, penguins are the quintessence of cute. Small wonder they're featured in Coke commercials, movies like "Madagascar" and "March of the Penguins" and children's toys galore. But one University of Houston professor is looking into a serious side of these ultra-cute creatures. Dozens of teeter-tottering penguins are the subjects of a research project investigating balance and locomotion.
4 mothers, 3.5 million children
Some 3.5 million or 40 percent of Ashkenazi Jews are descended from just four "founding mothers" who lived in Europe 1,000 years ago. The mothers were part of a small group who founded the Ashkenazi Jewish community, which was established in Europe as a result of migration from the Near East.
Cloned stem cells prove identical to fertilized stem cells
Scientists generally agree that all cloned animals are biologically flawed. But they don't agree about what that means for stem cells derived from cloned embryos, the basis for therapeutic cloning.
Evolution doesn't always favor bigger animals
Biologists have long believed that bigger is better when it comes to body size, since many lineages of animals, from horses to dinosaurs, have evolved into larger species over time.
Study of owls finds link in brain between sight and sound
Just imagine listening to someone talk and also hearing the buzz of the overhead lights, the hum of your computer and the muffled conversation down the hallway. To focus on the person speaking to you, your brain clearly can't give equal weight to all incoming sensory information. It has to attend to what is important and ignore the rest. Two scientists at the Stanford University School of Medicine have taken a big step toward sorting out how the brain accomplishes this task.
In spite of ourselves
In a study published in the Proceedings of the Royal Academy (January 17, 2006), Keith Jensen and colleagues from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany looks at altruism and spite in our close cousin; the chimpanzee.
How the brain makes a whole out of parts
When a human looks at a number, letter or other shape, neurons in various areas of the brain's visual center respond to different components of that shape, almost instantaneously fitting them together like a puzzle to create an image that the individual then "sees" and understands, researchers at The Johns Hopkins University report.
Biologists find new evidence for one-way evolution
By tracing the 30-million year history of variation in a gene found in plants such as tomatoes and tobacco, biologists at the University of California, San Diego have found new evidence to support an old idea — that some evolutionary changes are irreversible.
Fat overload kills mammalian cells
Investigating the harmful health effects of excess fat, researchers at Washington University School of Medicine in St. Louis have identified a protein that triggers death in mammalian cells overloaded with saturated fat.
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Researchers use dirt to stay one step ahead of antibiotic resistance
In an article in the January 20 issue of the journal Science, McMaster University researchers say that study of bacteria found in dirt may be the key in identifying how and why antibiotic resistance happens in bacteria that infect people, predicting future clinical problems, and testing new antibiotics.
Evolution study tightens human-chimp connection
Scientists at the Georgia Institute of Technology have found genetic evidence that seems to support a controversial hypothesis that humans and chimpanzees may be more closely related to each other than chimps are to the other two species of great apes – gorillas and orangutans. They also found that humans evolved at a slower rate than apes.
Genetic evidence shows colonialists pushed orang-utans to brink of extinction
A three year genetic study by wildlife geneticists from Cardiff School of Biosciences has shown a population collapse in the Bornean orang-utan.
Common bacteria pirate natural mechanism to get inside cells
Bacteria and viruses utilize a natural mechanism to get inside cells and grow, researchers say.
Fingerprints provide crucial clue to new nanofiber fabrication technique
Fingerprints are usually used to identify people but, this time, they gave Penn State chemical engineers the crucial clue needed to discover an easy, versatile new method for making nanofibers that have potential uses in advanced filtration as well as wound care, drug delivery, bioassays and other medical applications.
Sequencing our seas
Scientists have sequenced and compared the genomes of planktonic microbes living throughout the water column in the Pacific Ocean. The pioneering study yielded insight into the specialization of microbial communities at each depth--ranging from 40 to more than 13,000 feet.
Source of crucial immune cell in the skin discovered
Mount Sinai School of Medicine researchers have identified the precursors of cells in the skin that are part of the first line of defense against invading pathogens.
Marsupial genome reveals insights into mammalian evolution
The genetic code of marsupials has now been documented for the first time. An international team led by Kathy Belov from the University of Sydney's Faculty of Veterinary Science published an analysis of the marsupial genome in the open access journal PLoS Biology.
Are dancers genetically different than the rest of us?
What makes dancers different than the rest of us? Genetic variants, says a researcher at the Hebrew University of Jerusalem.
Spider venom and bacteria share same toxin
It's a case of evolutionary detective work. Biology researchers at Lewis & Clark College and the University of Arizona have found evidence for an ancient transfer of a toxin between ancestors of two very dissimilar organisms--spiders and a bacterium. But the mystery remains as how the toxin passed between the two organisms.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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