20 little-known fish killers with photos and descriptions

In the underwater world, besides indescribable beauty, there is also a lot of mysterious and dangerous things. Quite a few sea creatures have become notorious for killing humans.
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An amazingly beautiful but dangerous creature. When a person gets pricked by its needles, they experience excruciating pain until they lose consciousness. 18 venomous needles can be more terrifying than many poisonous snakes that inhabit the Earth.