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Environment

Wild horses in the US are being shot with contraceptive darts

By Alice Klein

26 January 2020

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Horses in New Mexico have been shot with darts containing a long-acting contraceptive

infocusphotos.com/Alamy Stock Photo

Shooting wild horses with contraceptive darts may help curb their numbers in parts of the US where their populations are ballooning out of control.

Horses were reintroduced to the US by the Spanish in the 16th century, after native North American horses went extinct about 10,000 years ago. Lacking natural predators, they have since spread across the rangelands in the western US.

More than 70,000 wild horses now occupy public rangelands, about 45,000 more than …

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