00:00A national park in Taiwan says more than half of the fish in one of its ecological ponds are
00:05invasive species. Shueba National Park says a two-year survey found that 50 percent of the
00:11fish in the pond are non-native, threatening native species. Park authorities believe the
00:16fish were introduced by people releasing or abandoning them. They're urging visitors to
00:20stop the practice, warning it's damaging the ecosystem.
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