Venomous fish
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Venomous fish are species of fish which produce strong mixtures of toxins harmful to humans (called venom) which they deliberately deliver by means of a bite, sting, or stab, resulting in an envenomation. As a contrast, poisonous fish also produce a strong toxin, but they do not bite, sting, or stab to deliver the toxin, instead being poisonous to eat because the human digestive system does not destroy the toxin they contain in their bodies. Venomous fish do not necessarily cause poisoning if they are eaten, as the digestive system often destroys the venom. There are at least 1200 species of venomous fish, with catfishes alone possibly contributing 1250–1625 species to that total. The former number accounts for two-thirds of the venomous vertebrate population. There are more venomous fish than venomous snakes and indeed more than the combined total of all other venomous vertebrates. Venomous fish are found in almost all habitats around the world, but mostly in trop...