Slashdot discusses a story named Remote-Controlled Planes Used For Wildlife Conservation. This of course has a relation with the recent story named Commercial Drones Taking To the Skies in the U.S.
Their summary: "Conservationists have converted a remote-controlled plane into a potent tool for conservation. The drone — an HK Bixler equipped with cameras, sensors and GPS — has been used to map deforestation, count orangutans and elephants, and get a bird's eye view of hard-to-access forest areas. During their 4 days of testing in Sumatra, the drone flew 30 missions without a single crash. A mission, which typically lasts about 25 minutes, can cover 50 hectares. The drone, full equipped, costs less than $2,000."