The Aliens Have Landed


According to some statistics, the economic damage from invading alien species might be costing the global economy more than any other form of environmental disruption: $1.4 trillion a year. NATURE INC. examines the price nations pay for failing to stop these invasions. Featured is a cast of leading villains: cane toads in Australia; zebra mussels and the Burmese python in the USA; love grass in Brazil.