Study | featured news

Does a new study offer a bird's-eye view into evolution? Fewer cliff swallows are being killed by moving vehicles because of evolution, suggests a study published online today in the journal Current Biology. "These birds have been exposed to vehicles and roads for 30-plus years," says Charles Brown, the study's lead author. "During that time, they have evolved to avoid being killed by traffic. Evolution can happen very rapidly, and some animals can adapt to urban environments very rapidly."

The U.S. war in Iraq has cost $1.7 trillion with an additional $490 billion in benefits owed to war veterans, expenses that could grow to more than $6 trillion over the next four decades counting interest, a study released on Thursday said.

Researchers have found that the benefits to women of treating breast cancer with radiation outweigh the risks of heart disease.

A new study shows how difficult that information is to come by.

Applying for benefits under President Barack Obama's health care overhaul could be as daunting as doing your taxes....

Even without modern-day temptations like fast food or cigarettes, people had clogged arteries some 4,000 years ago, according to the biggest-ever study of mummies searching for the condition....

Imagine two dolphins swimming in the Gulf of Mexico. You hear a series of clicks, whistles and whines coming from each, much like a conversation in dolphin language... "These whistles actually turned out to be names. They're abstract names, which is unheard of in the animal kingdom beyond people," said Randall Wells, one of the authors of a new study on dolphin behavior, told CNN affiliate WFLA-TV in Tampa, Florida.

Researchers are reporting success with using cash incentives to help people lose weight. In a yearlong study, people were offered a chance to win or lose $20 a month if they met certain diet goals. They lost an average of 9 pounds compared to just over 2 pounds for other study participants who were not offered the chance to win money if they shed pounds.

The growing toll of diabetes cost the nation a record high $245 billion in 2012, a 41% increase from $174 billion in 2007, according to new research released today. The study Economic Costs of Diabetes in the U.S. in 2012, commissioned by the American Diabetes Association, estimated the health care and work-related costs of diagnosed diabetes. The full study will be published in the April issue of Diabetes Care.

A new report for the Pentagon has concluded that the nation’s military is unprepared for a full-scale cyber-conflict with a top-tier adversary and must ramp up its offensive prowess. The unclassified version of the study by the Defense Science Board also urges the intelligence community to boost its collection on leading nations’ cyber-capabilities.