Tucunaré, or Peacock Bass, are native to the waterways of the Amazon. They're now being found in the Pantanal but are regarded as an invasive species since their voracious appetite has seen them decimate native fish populations in other areas.
Despite potentially being environmentally destructive, Peacock Bass, are a good eating fish popular with sports fishing enthusiasts. Credit: LuisGomez111
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Banner image: Tucunare or Peacock Bass (iStock/Fernando Podolski)