Body

They tell a story, these bleached bones that gleam in the sun in Yellowstone National Park.

Bones on landscapes like Yellowstone may provide detailed accounts of how animal populations have changed over the last few decades or even century, scientists have found.

"The skeletons of long-dead animals lying on landscapes provide critical insights into our understanding of ecosystem history, especially how populations have changed," says biologist Joshua Miller of Wright State University in Dayton, Ohio.

PROVIDENCE, R.I. [Brown University] — Just as a company creates new, better versions of a product to increase market share and pad its bottom line, an international team of researchers led by Brown University has found that plants tinker with their design and performance before flooding the environment with new, improved versions of themselves.

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Women with osteoporosis in their hip suffer menopause two years earlier than healthy women, a study conducted at the University of Granada says. Additionally, although further study is required, researchers have found at least three genetic markers associated with osteoporosis in the hip in postmenopausal women.

Scientists of the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ), jointly with colleagues in the United States, have found out that inflammations of the heart muscle are caused by attacks of a specific type of immune cells. These immune cells attack the body's own tissue because during their maturation they did not have the chance to develop tolerance against a protein that is only found in the heart muscle.

Insects using vibration to attract a mate are at risk of being eaten alive by killer spiders, Cardiff University scientists have discovered.

Studying spider behaviour experts from Cardiff University's School of Biosciences found that the vibrations used by leafhoppers and many other insects to attract a mate can be intercepted and used by predatory spiders to identify their prey.

CHICAGO, Ill. (March 29, 2011)—A unique formulation of antioxidants taken orally before imaging with ionizing radiation minimizes cell damage, noted researchers at the Society of Interventional Radiology's 36th Annual Scientific Meeting in Chicago, Ill. In what the researchers say is the first clinical trial of its kind, as much as a 50 percent reduction in DNA injury was observed after administering the formula prior to CT scans.

ANAHEIM, March 28, 2011 — Mimicking Mother Nature's genius as a designer is one of the most promising approaches for developing new medicines, sustainable sources of food and energy, and other products that society needs to meet the great challenges that lie ahead in the 21st century, a noted scientist said here today.