{
  "id": 15793658,
  "title": "Why the humble rabbit might be Australia’s worst introduced species",
  "url": "https://urgent.news/2026/10/20/why-the-humble-rabbit-might-be-australias-worst-introduced-species",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-20T19:03:28.000Z",
  "source": {
    "name": "The Conversation AU",
    "slug": "the-conversation-au",
    "url": "https://theconversation.com/why-the-humble-rabbit-might-be-australias-worst-introduced-species-287167"
  },
  "original_language": "en",
  "account": "Australia's invasive rabbit population poses a severe threat to native ecosystems and agriculture, potentially ranking as the nation's worst introduced species. Thomas Austin, a 19th-century pastoralist homesick for England, introduced wild and domestic rabbits to his Barwon Park estate near Geelong in 1859, sparking a disastrous biological invasion. While domestic rabbits had been present since the First Fleet, Austin's wild genetic stock proved far more successful at establishing self-sustaining populations.\n\nRabbits reproduce rapidly, with a doe capable of giving birth to up to 50 kittens annually and breeding as early as 4 months old. This fecundity enables Australia's rabbit population to swell to an estimated 200 million individuals, making them one of the nation's most widespread and damaging invasive species. Their impact is felt across various sectors, as they outcompete native herbivores for food, consume up to a third of their body weight daily, and disturb the land through warren creation, exacerbating erosion and weed spread.\n\nEfforts to control rabbit populations have included the release of biocontrols such as Myxoma virus and Rabbit haemorrhagic disease virus. While these have helped reduce rabbit numbers, surviving rabbits have developed resistance, and the virus strains have shown variable effectiveness. Despite these challenges, rabbits continue to pose a significant threat to Australia's native species, which include over 300 threatened animals and plants. As such, the rabbit's presence in Australia remains a contentious issue, with ongoing efforts to manage and mitigate their impact on the environment and agriculture.",
  "summary": "In 1920, an estimated ten billion rabbits roamed Australia. Biological controls have reduced their numbers – but rabbits remain a big problem",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}