When we think of dangerous animals, we usually think of sharks and crocodiles. But some of the world's most dangerous fish are far less known and possess surprising characteristics, such as powerful spines, electric shocks, and terrifying teeth. In this video, we'll get to know these incredible crea
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![Extraordinary Creatures [Full Documentary]](https://i.ytimg.com/vi/QR7KEp6U-5k/hqdefault.jpg)
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