Australia's Rabbit Invasion: How 24 Hares Led to a Continental Catastrophe

Australia continues to grapple with the consequences of introducing non-native species, a problem that has plagued the continent for decades. Among the most devastating introductions is the European rabbit, whose unchecked proliferation has turned a simple hunting desire into a continental ecological and economic catastrophe.

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The harmless desire of one settler for hunting turned into an ecological and economic disaster that engulfed almost the entire continent.

The saga began in 1859 when Thomas Austin, a British settler in Victoria, released just 24 rabbits onto his property, Barwon Park. Austin, longing for the hunting traditions of his homeland, intended to establish a local population for sport. However, the mild Australian winters and vast food resources created an ideal breeding ground.

Within seven years, the rabbit population had surged, with over 14,000 rabbits reportedly culled from Austin's estate alone. By the 1880s, rabbits had spread across much of southeastern Australia, advancing at a rate of approximately 100 kilometers per year. This exponential growth led to severe environmental damage, including crop destruction, soil erosion, and the displacement of native flora and fauna.

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Rabbits began to multiply exponentially and quickly reached a number of several thousand.

In response to the escalating crisis, authorities commissioned a royal commission, which proposed building the world's longest fence. Completed in 1907, the Rabbit-Proof Fence stretched over 3,200 kilometers across Western Australia. Despite its immense scale, the fence proved largely ineffective, with rabbits managing to burrow under or breach damaged sections. While it slowed their spread, it failed to eradicate the problem, highlighting the persistent challenge of controlling invasive species.

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At the peak of the invasion, their population spread at an incredible speed of about 100 kilometers per year.