The world is pretty obsessed with killing invasive species — for conservation! The U.S. alone spends $3 billion on invasive species control each year. The goal of many eradication efforts worldwide is to protect a native or endangered species from that threat. So we end up killing one species to save another.

One nation does not shy away for purging pests: New Zealand. The government plans to remove all invasive predators by 2050 through a nationwide initiative called Predator Free 2050.

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