A study made by University of Massachusetts researchers showed that about 85 percent Canadian currency contain trace amounts of cocaine. Canada and the U.S. topped the list of nations with high levels of cocaine traces.

University of Massachusetts chemistry professor Yuegang Zuo, who led the research team, presented their findings Sunday at the 238th national meeting of the American Chemical Society.

Twenty-eight finalist candidates for the New 7 Wonders of Nature contest will be known on July 21, the New7Wonders Foundation said Friday.

The non-profit foundation, which organized and manages the worldwide contest, will announce the finalists at its headquarters in Zurich, Switzerland at 12:07 GMT or 14:07 local time.

Scientists have discovered a new subspecies of primate with a distinctively long tail deep in the Amazon forest of Brazil.

The monkey was named Mura's saddleback tamarin (saguinus fuscicollis mura) after a native tribe that inhabits the place where the animal was found during an expedition into the Amazonas state in northwestern Brazil in 2007, the scientists said Tuesday. The Mura Indians live in the Purus and Madeira river basins

It turns out that the best exercise equipment a person can have is access to a city sidewalk.

Researchers say that people who live in cities are able to walk or jog on them and that increases those people's chance of getting enough exercise to help them stay healthy.

A Brazilian woman survived a robbery and shooting attack on a bus because she had stuffed money into her bra.

Ivonete Pereira, 58, was shot in the chest by one of the attackers who were trying to rob a bus in Salvador, the capital of the northeastern state of Bahia in Brazil, the United Kingdom's Sky News reported.