How We Bred Goldfish Into Biological Disasters

A goldfish in a bowl stays small and harmless. Release the same fish into a lake, and something else happens. This video looks at what a pet goldfish actually turns into once it's free — how big it really gets, why it survives almost anywhere, and why wildlife agencies now treat it as one of the most damaging invasive fish on the continent. 0:00 The bowl fish that isn't the same species 3:46 What "just a goldfish" turns into in the wild 5:30 Why almost nothing can stop it 11:33 What's being done about it right now Subscribe for more. #goldfish #invasivespecies #wildlife