Small creatures but deadly

Although the following creatures appear to have a very peaceful and tiny bodies, it does not prevent making it a deadly  meaning it can feed on larger creatures after seting up traps.

Starfish

You may not believe it, but there are predator starfishes, although they usually attack slow moving preys or none moving like snails, and Coral reefs, surprisingly it is able to catch faster and more intelligent creatures, such as shrimps and fishes, some starfish  hunt their food by extending its twisted arms like traps, other types has microscopic pliers that hold on the skin of other passing creatures, but the strangest of them all is those that stand  on its arms to mimic a tent, and when sea creatures go under  searching for shelter the starfish falls on it preventing it from running and then of course it swallows it up ..

sea squirts

the sea squirts are one of those creatures known for their stability in one place, they feed on plankton by filtering them from water by taking in water through its mouth and then out of an opening on top of its body, but in the deep sea there is was no plankton, which led to the evolution of these sea squirts to have a bigger mouths enough for bigger preys, they hunt them by closing their mouth when they pass by.

Sea Snail

The snails are considered the slowest creature on land , but marine species of it are pretty fast, they feed on some of the tentacles of jellyfishes which are highly toxic acquiring by that the toxic cells from it, as "cone snails" they can parlays fish and sometimes humans, there are also some predators snails on land, but rare, such as "rosy wolf snail" which feeds on other snails, and also there are the "ghost slug" which lives under the ground, it is blind and feeds on worms.

Coral reefs

Coral reefs always seemed to look like a sponge from the outside, but in reality they are colonies for many small sea creatures that usually feed on smaller creatures, coral reefs feed by grabbing jellyfishes from their huge tentacles that tries to feed on the colony inhabitants.