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The idea is that brown tree snakes will eat these snacks from the sky. Then, it's hoped, the snakes will die because the mice will be laced with painkillers. The active ingredient in those drugs should be toxic to the snakes.

Roller derby teams had distinct bacterial colonies on their arms before a bout, researchers found. After pushing and shoving on the track, those colonies were more similar. The research is part of the push to identify the microbes that live on (and in) us.

For decades, millions of refugees around the world have lived in canvas tents. But those tents are hot during the day, cold at night, and afford little privacy. Ikea and the U.N. refugee agency are working to provide a durable and innovative alternative. Testing on the units begins this month in Ethiopia.

Obama also defended his administration's surveillance programs, saying they've struck the right balance between security and privacy.

Scientist Terry Root, author and activist Terry Tempest Williams and filmmaker Robert Redford all turn up in this documentary on eco-activist Tim DeChristopher, who bid on — and won — mineral rights to a chunk of federal land just to tie them up. He was prosecuted and sentenced to federal prison.

Officials are forecasting that hurricane activity will be "above normal" this season, with 13 to 20 named storms. As many as six of those could be major hurricanes. Warm ocean waters and the lack of El Nino conditions are partly to blame.

As humans have cut into Brazil's forests, the toucan population has taken a dive. The trees, in turn, have changed, too: Without large-billed birds to eat fruit with big seeds, only trees with small seeds thrive. Eventually, one scientist says, "the impacts on the forest could be quite dramatic."

The Department of Interior's Bureau of Ocean Energy Management admits no liability in the whistle-blower case brought by the scientist. The agency says it agreed to the settlement to avoid litigation costs.

Scientists who do research in Antarctica have just learned that the shutdown will effectively cancel all of their planned fieldwork on the icy continent this year. All research activities not essential to human safety and the preservation of property will be stopped.

Russian sports fans have been involved in several violent or racist episodes recently as the country prepares to host the 2014 Winter Olympics and the 2018 World Cup.