Women hedge, issue disclaimers and ask questions when they communicate, language features that can suggest uncertainty, lack of confidence and low status. But men do the same.

Scientists from the U.S. have teamed up with Israeli and Jordanian researchers to protect the Gulf of Aqaba, a strategic waterway whose fragile marine ecosystem is vital to both Israel and Jordan. Participants in the NATO-funded project say they are bridging the Arab-Israeli political divide for the sake of science, peace and environmental conservation.

Women may have a slightly higher risk of death than men in the 30 days following an acute coronary syndrome (ACS; such as heart attack or unstable angina), but this difference appears attributable to factors such as severity and type of ACS, clinical differences and angiographic severity according to a new study.

Scientists have discovered a potential new drug delivery system. The finding is a biological mechanism for delivery of nanoparticles into tissue.

Ppaleontologists and ornithologists have discovered evidence of vivid iridescent colors in feather fossils more than 40 million-years-old. The finding signifies the first evidence of a preserved color-producing nanostructure in a fossilized feather.

Parkinson's disease sufferers typically face a long, difficult battle against the disorder's degenerative effects on their motor skills and speech . While many scientists are studying the potential for drugs, surgery and exercise to slow the disease's impact on the central nervous system--including tremors, stiff muscles and impaired movement--one team of researchers is experimenting with technology designed to help Parkinson's sufferers fend off voice and speech problems. [More]

The Tobacco Atlas, 3rd Edition, published by the American Cancer Society and World Lung Foundation, estimates that tobacco use kills some six million people each year -- more than a third of whom will die from cancer -- and drains $500 billion annually from global economies.

When something's bugging rice farmers, a large segment of the world's population will know. That's because a big bite of the supply is taken by hungry insects every year. One of the worst is the rice water weevil. Its gray snout has chomped through the world making a sizable dent in rice supplies. A Texas researcher is splashing through rice paddies with his net to discover news ways of controlling the rice-craving insect.

Infection with an antimicrobial-resistant strain of typhoid fever among patients in the United States is associated with international travel, especially to the Indian subcontinent (India, Pakistan, and Bangladesh), according to a new study. The research also shows an increase in certain strains of typhoid fever that are resistant to the most commonly used medications for treatment.

The Encyclopedia of Life's inventory of Earth's species -- now 150,000 pages of vetted information, en route to 1.8 million (one page for each known species) -- is shedding light on everything from conservation strategies for endangered species to climate change. It will also help slow the global spread of disease-bearing or invasive pests. Scientists are also outfitting EOL with tags to help scour the data for the secrets of long life. As detailed below, EOL may one day help advance human longevity -- explaining, for example, why certain species, even those within the same family, live longer than others, opening promising new avenues of aging research.