Red-eyed treefrog embryos actively avoid asphyxiation inside their eggs

Parasites That Live Inside Cells Use Loophole To Thwart Immune System

Scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide.

Tiny DNA Tweezers Can Catch And Release Objects On-demand

Researchers in China are reporting development of a new DNA "tweezers" that are the first of their kind capable of grasping and releasing objects on-demand. The microscopic tweezers could have...

DNA Fingerprinting Method May Thwart False Labeling Of Shark Meat

Researchers in Spain are reporting that a new DNA identification method could thwart false labeling of shark species used in various seafood products, including the expensive Chinese delicacy known as...

Small mosquitoes are likely virus carriers

VERO BEACH, Fla., Nov. 4 (UPI) -- U.S. entomologists say they've determined smaller mosquitoes are more likely to be infected with viruses causing human diseases than are larger...

Tuna Range Wide, Dive Deep

A 10-foot-long Atlantic bluefin tuna was fitted last week with the 1,000th electronic tracking tag ever placed on this fast, large and powerful yet threatened species.

Seasonal Affective Disorder May Be Linked To Genetic Mutation, Study Suggests

A new study indicates that seasonal affective disorder may be linked to a genetic mutation in the eye that makes a SAD patient less sensitive to light.

Saving The Endangered Tasmanian Devil In Australia

Zoologists are working on a national project in Australia to help save the endangered Tasmanian devil from extinction.

A Molecular Identity Crisis - a 'Ribozyme Without RNA'

(PhysOrg.com) -- Not all enzymes that are assumed to require an RNA component in order to function do actually contain RNA. This surprising discovery was made during a project supported...

Mouse model highlights histone methylation as distinguishing feature for leukemia subtypes

Research using a new mouse model has led to the identification of a potential therapeutic target for a type of leukemia commonly associated with an unfavorable prognosis. The study, published...

Systems Biology And Glycomics Applied To Study Of Human Inflammatory Diseases

An innovative systems biology approach to understanding the carbohydrate structures in cells is leading to new ways to understand how inflammatory illnesses and cardiovascular disease develop in humans.

Simple Chemical Procedure Augments Therapeutic Potential Of Stem Cells

Researchers have developed a simple method for making a certain class of adult stem cells more therapeutically effective. By attaching a molecule called SLeX to the surface of human cells...

'Superenzymes' Could Streamline Biofuels Refining

Stain removers that make even the most stubborn spots on your clothes vanish in the wash may be powered by molecules known as enzymes. Scientists are in search of similarly...

Study Rules Out Inbreeding As Cause Of Amphibian Deformities

Although research has linked inbreeding with elevated rates of deformity in a wide variety of animals, a new study finds it plays no part in the high incidence of malformation...

Bacteria use rippling effect to reach prey

IOWA CITY, Iowa, Nov. 3 (UPI) -- U.S. scientists say they've discovered some bacteria use a rippling motion involving thousands of cells working in concert to reach their...

Some Progresso-brand tomato soup recalled

WASHINGTON, Nov. 3 (UPI) -- The U.S. Food and Drug Administration announced the voluntarily recall of some Progresso-brand tomato soup because of a labeling error.

Study Of Learning Disabled Mice Shows Balance In The Brain Is Key

A new study has revealed the molecular and cellular underpinnings of one of the most common, single gene causes for learning disability in humans. The findings made in learning disabled...

Magnet Restores Color Perception In Partially-sighted Patient

By manipulating the brain non-invasively in a new way with magnetic stimulation, researchers have shown that they can restore some experience of color where before there was no visual awareness...

Tiny Fungi May Have Sex While Infecting Humans

A fungus called microsporidia that causes chronic diarrhea in AIDS patients, organ transplant recipients and travelers has been identified as a member of the family of fungi that have been...

Odorprints Like Fingerprints? Personal Odors Remain Distinguishable Regardless Of Diet

Scientists present behavioral and chemical findings to reveal that an individual's underlying odor signature remains detectable even in the face of major dietary changes. The findings indicate that biologically-based odorprints,...

Upsurge of West Nile virus linked to foreclosures, study finds

Scientists say cases soared in Bakersfield last year largely because of mosquitoes breeding in abandoned swimming pools. ...

Tale of two snails reveals secrets about the biochemistry of evolution

Researchers in Spain are reporting deep new insights into how evolution changes the biochemistry of living things, helping them to adapt to new environments. Their study, based on an analysis...

What's the influence of laxative agents on mucosal barrier repair?

The prostone lubiprostone has been shown to stimulate chloride secretion via one of the minor intestinal epithelial channels, ClC-2. This results in sustained low-level secretion of water into the lumen....

West Nile's North American Spread Described

Most affected bird species have not yet recovered from the rapid spread of West Nile virus in North America after 1999, and the long-term ecological implications of the pathogen seem...

How Signals Flow Between Neurons: New Research Explains Membrane Fusion At Synapse

Imagine a bathtub with two soap bubbles colliding but never fusing. Then you add detergent, and the surface of the water goes flat as the walls of the bubbles collapse...

How dangerous is drum making?

A second drum maker in two years has died after apparently inhaling anthrax spores from animal skins. What are the risks of this seemingly safe job?

Prince calls for rainforest bills

The Prince of Wales gives support to the idea of charging developed nations a "utility bill" to maintain rainforests.

Renzo Piano's California Academy of Sciences

Renzo Piano has designed a striking new home for the California Academy of Sciences. Set in Golden Gate Park, San Francisco, the museum houses a planetarium, a sample of rainforest...