On Aug. 4, local fisherman Einar Lindgreen was going through his catch after fishing in the Oresund, the strait between Denmark and Sweden. Besides the eels and perch, Lindgreen also netted an exotic fish suspected to be a red-bellied pacu, which is native to the Amazon and has uncannily human-looking teeth.
"It's the first time this species has been caught in the wild in Scandinavia," fish expert Peter Rask Møller of the University of Copenhagen said in a statement. "Discovering whether this fish is a lone wanderer or a new invasive species will be very exciting. And a bit scary."
The toothy South American fish has crept into lakes and rivers far outside its native range, likely after getting loose from aquariums


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