And they are everywhere below 40m deep (or so) in soft bottoms. Is an omnipresent danger for small fishes. Mantis shrimp are also evil things. Pistol shrimps ar

And they are everywhere below 40m deep (or so) in soft bottoms. Is an omnipresent danger for small fishes. Mantis shrimp are also evil things. Pistol shrimps aren't more known because they are (fortunately) small, but they are very interesting creatures.