In 1889, twelve pairs of European rabbits (Oryctolagus cuniculus) were introduced to Melbourne, Australia so that they could be hunted for sport. Within fifty years, 600 million individuals had spread across the country, with disastrous consequences for Australia’s flora and fauna. A number of preventive measures were put in place including trapping, destruction of burrows, arrival of foxes and ferrets. Between 1903 and 1907, a fence of over 1833 kilometers was built from the northwest to the south of the country, making it the longest fence in the world at the time. Today, the Rabbit Proof fence stands as a barrier to entry against all other invasive species such as dingoes, kangaroos and emus, which damage crops. At 7 692 024 km², Australia is still home to approximately 200 million rabbits!