In the mid-1980s, farmers brought deer to a South Korean island for their antlers; after the business collapsed, roughly 1,000 feral descendants surrounded about 150 residents

Anma Island is grappling with a severe overpopulation of sika deer, initially introduced for antler farming. With no natural predators, these deer have wreaked havoc on the local ecosystem, severely damaging plant life and crops. Recent government assessments highlight the alarming size of the deer population and the resulting ecological damage.
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