In 1912, New Zealand released wallabies near Rotorua; they now occupy more than 200,000 hectares and, if left unchecked, could spread across a third of the country by 2065, causing $84 million in damage a year

Wallabies introduced to New Zealand more than a century ago have spread across more than 200,000 hectares in the country’s North Island. Authorities are now working to control their population because the animals can damage native forests, compete with farm animals for pasture and harm young trees in plantations.

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