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Biology RSS FeedsStudy says eyes evolved for X-Ray vision - he eyes of some mammals have evolved to point in the same direction. While animals with forward facing eyes lose the ability to see what's behind them, they gain X-ray vision, which makes it possible for them to see through the clutter in the world. Credit: Rensselaer/Changizi The advantage of using two eyes to see the world around us has long been associated solely with our capacity to see in 3-D. Now, a new study from a scientist at Rensselaer Polytechnic Institute has uncovered a truly eye-opening advantage to binocular vision: our ability to see through things. ...Feed Source: feeds.biologynews.net Bitter-tasting nectar and floral odors optimize outcrossing for plants - Animals "personally" bring their gametes together ? seeking out sexual partners, mating, fertilizing, and reproducing. Plants, however, are sessile organisms and require the help of a third party, the pollinator, which can be a bird, mouse or insect that transport pollen to receptive stigmas frequently over large distances. The colors and shapes of flowers as well as their volatile signals and nectar attract and reward the pollinators for their efforts. But not all flower visitors are pollinators, as many come only to steal nectar without transporting pollen or eat flower parts.
... New giant clam species offers window into human past - Researchers report the discovery of the first new living species of giant clam in two decades, according to a report to be published online on August 28th in Current Biology, a Cell Press publication. While fossil evidence reveals that the new species, called Tridacna costata, once accounted for more than 80 percent of giant clams in the Red Sea, it now represents less than one percent of giant clams living there.
... Unexpected large monkey population discovered - A WCS report reveals surprisingly large populations of two globally threatened primates in a protected area in Cambodia.
... Risk of fracture is significantly higher in HIV-infected patients - As antiviral treatment for HIV infection allows patients to live longer, many will be confronted with additional health challenges. A new study shows for the first time that one of these may be significantly increased risk of bone fractures. The report in the September Journal of Clinical Endocrinology and Metabolism finds that fracture prevalence was increased more than 60 percent in those infected with HIV compared to patients without HIV infection.
... New concepts in contraception - Latest research into dual-purpose contraceptives and non-hormonal contraception will be presented tomorrow at a major scientific conference in Melbourne.
... Chronic stress alters our genetic immune response - Most people would agree that stress increases your risk for illness and this is particularly true for severe long-term stresses, such as caring for a family member with a chronic medical illness. However, we still have a relatively limited understanding of exactly how stress contributes to the risk for illness. In the August 15th issue of Biological Psychiatry, researchers shed new light on one link between stress and illness by describing a mechanism through which stress alters immune function.
... No-take zones offer no boost for bleached reefs - Conservation zones are in the wrong place to protect vulnerable coral reefs from the effects of global warming, an international team of scientists warned today.
... Protection zones in the wrong place to prevent coral reef collapse - Conservation zones are in the wrong place to protect vulnerable coral reefs from the effects of global warming, an international team of scientists warned today.
... Protein misprediction uncovered by new technique - A new bioinformatics tool is capable of identifying and correcting abnormal, incomplete and mispredicted protein annotations in public databases. The MisPred tool, described today in the open access journal BMC Bioinformatics, currently uses five principles to identify suspect proteins that are likely to be abnormal or mispredicted.
... Research examines variations of rare lung disease - CINCINNATI - Lymphangioleiomyomatosis, or LAM, is a rare but serious lung disease that may cause severe respiratory symptoms in patients. The often-fatal disease has no cure.
... Study of islands reveals surprising extinction results - It's no secret that humans are having a huge impact on the life cycles of plants and animals. UC Santa Barbara's Steven D. Gaines and fellow researcher Dov Sax decided to test that theory by studying the world's far-flung islands.
... UBC scientist unveils secret of newborn's first words - A new study could explain why "daddy" and "mommy" are often a baby's first words ? the human brain may be hard-wired to recognize certain repetition patterns.
... Study points to potential new use for Viagra - A "basic science" breakthrough by Queen's University researchers into regulating a single enzyme may lead to new drug therapies that will help prevent heart attacks and strokes.
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