Monstrous goldfish found in Australian rivers were released as pets
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Australian researchers are warning of a new, invasive threat to the continent’s native wildlife: goldfish that were abandoned by their owners and released into the wild. Most of us think of goldfish as a small and harmless species, but apparently Western Australia’s rivers contain just the right conditions to allow the fish to grow into two kilo monsters that wreak havoc on the local ecosystem. There are a number of reasons why these fish pose such an environmental hazard. For...