Australia's unique ecosystems are threat from an invasive and deadly species – the red fire ant. The tiny ant is native to South America, but has spread the globe the past century. It is one the world's most invasive creatures. It causes extensive damage to crops and agricultural land. It also kills large numbers indigenous insects and other animals, including livestock. The ant's painful and venomous sting can cause severe allergic reactions humans. It can also cause fatal anaphylactic shock. A spokeswoman the Minister Agriculture called the fire ants "a terrible invasive super-pest, which cause serious social, economic and environmental harm".
Red fire ants were first detected Australia in 2001. They have largely been contained the state of Queensland since then. However, Australia's Invasive Species Council (ISC) says the ants are spreading the country flood waters. They are clinging to each other their tens of thousands to form "rafts" the storm water. An ISC statement said: "Fire ants are more active before or after rainfall and can form large floating rafts, which move water currents to establish footholds new areas." It added: "Our teams are focused limiting further spread." The ISC warned that the fire ants will reach "every corner Australia" if the current outbreak is not kept check.