Planet flowers

Suddenly when swimming in the sea, you face a big flower with soft " arms " that catch prey and swallow prey. When you look closely you see this flower rarely moves because it moves very slowly. It is an animal named " Anemone " of the Actiniaria. They have colorful tentacles, so they look just like flowers. Anemone has more than 1,000 close relatives, with a diameter of a few millimeters to 1.5 meters.

On top of the tentacles there are magnet cells, which can stick. This adhesion is due to many tiny stinger cells. The tentacles launched very small spikes into what needed to stick. In addition to its functions, the tentacles are also effectively used by anemones to paralyze or kill prey. The muscles help the anemone slowly pull the prey towards his mouth. Then the muscles slowly bring the prey into the stomach.

The structure of an anemone body is extremely unusual: almost the whole body is overwhelmed by a large stomach. The short throat is right above stomach and located just below a mouth. The mouth is in the center of a disc shaped section surrounded by tentacles. Sea anemones do not have (nor need) brain, heart, kidney, lungs or a strong bone . They contract muscles to shrink the muscles around the stomach full of water, making the stomach look like water balloons.

When the tide recedes and exposes the seaweed from the water, they will contract the muscles and hide the tentacles inside the body. They also know how to camouflage by using the stick on the upper part of the body to pull the stones and the surrounding shells around them, and they curl their bodies.

Anemones live both in and out of water. This creature has great adaptability. They are found in depths of more than 10,000m; some still live in brackish water

Although occasionally killing and eating crustaceans, anemones also give "friends" crabs a "home" to stay in the middle of their dangerous tentacles.