“The sheer density of the rainforests in Australia’s far-north creates a slight problem for local conservationists. With incursions by invasive plants posing a threat to the native flora, inaccessibility for people makes it a difficult and time-consuming task to monitor the region. Now researchers from the CSIRO have developed two mini helicopters capable of hunting down the dangerous weeds from the air, significantly reducing the resources needed to preserve local plant life.”

Source: www.gizmag.com