Islands the world over are vulnerable to invasive species that can seriously threaten native wildlife. The Galapagos, where goats and rodents have caused particular problems, are just one example. On the island of Guam (a 'territory' of the United States located in the Pacific Ocean), brown tree snakes have caused both environmental and financial damage, including triggering regular power outages by finding their way into electricity substations. Now, the US government is spending millions of dollars trying to reduce snake numbers using an innovative technique: they are parachuting thousands of dead mice onto the island, all laced with poison.
To find out more about this venture click here, or watch the short film below.