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Cyanide: an easy but deadly way to catch fish

Catching live fish using cyanide is easy. 

Crush a couple of sodium cyanide tablets into a squeegee bottle of water, dive around a coral reef, find a fish you fancy, and squirt the toxic liquid into its face. The mixture stuns the fish without killing it, making it easy to catch in a net, or even by hand.

 

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Negative Externality Tragedy of the Commons