goldfish released into UK waters are turning into 'giant' 2ft-long killers, new research has revealed. Once out of their bowls and let loose in open waters, they are wreaking havoc on native species by eating insects and tadpoles – outcompeting rivals and threatening biodiversity.Taking the ‘humane option’ by attempting to save the family pet may lead to catastrophic consequences for the planet, the Daily Mirror reports.Lead author Dr James Dickey, of Queen's University Belfast, said: "Our research suggests goldfish pose a triple threat.
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