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Simply to provide camouflage. A stonefish gave up the ability to swim fast long ago in the evolutionary chain in favor of a strong venom (injected by spines in the dorsal fin) and the appearance of a stone on the ocean floor. That is why a stonefish has a lumpy body, and is grey, mostly featureless, and best left alone. Answered by PHYSICSguru
Stonefish have 13 spines on their back that inject a toxin when pressure is placed on them, such as a larger fish attacking or a human stepping on them. They have evolved a stone like camouflage that aids in hunting. They lie in wait for a smaller fish to swim by and suck it in at lightning speed.
The Stonefish is special because it is one of the most venomous fish in the world. You can get more information about this at the Wikipedia. Once on the website, type "Stonefish" into the search field at the top of the page and press enter to bring up the information.
Any type of fish that swims by
Depending on the type, about 20 or 30 years.
a average stonefish is about 49 or 35 the longest stonefish was 51cm
No, stonefish are fish.
Yes, the stonefish has a tail.
DO stonefish hibrinate
Stonefish, although some could classify it as being prey, is actually a predator known as an ambush predator using camouflage to blend in to the ocean floor...although some species have the ability to live in rivers. As it is a carnivorous fish, and one of the most venomous, it simply has to lie upon the ocean floors or reefs and wait for some prey to swim upon it, thinking it to be a rock, and then the stonefish simply bites down on them, making them quite an effective predator based on its rock-like camouflage.