TOPIC4

Protect

　Does not have a shell, the sea slug, though it is likely to be bright and striking color, why is it that you do Will not eat exhausting. Instead of the shell you've shed, I was wearing a lot of defenses.

1. First, the sea slug is looking at itself, and see in the surrounding environment is very colorful and beautiful, but it does not stand out at all in keeping well. Can not I find also quite looking sea slug, you would not do it more often has not been found. The fact that there is not a place where many prominent sea slug is hiding in the shadows. Among the sea slug, that takes some of the seaweed and sea sponge of food the dye, together to mimic the color of the body in that color.

Where is sea slug?

2. Even if the enemy found, if　sea slug is very bad taste and mouth trying to eat, sea slug is more likely to survive. As a matter of fact, sea slug are very bad taste, it's likely not something like eaten very much. The reason why the very bad taste, because sea slug is likely to eat something very bad taste food. In fact, I want the person who tried to eat sea slug. As a result, the act is more likely to feel the danger gave up on edge just licking the tongue. It also has the belief that I eat anything, a famous people  Masanori Hata(Mr.Mutugoro) in the essay,  seems to have written had he not eat only sea slug.Some people have tried, from a sense of crisis, would not spit swallow, one day after a chemical smell that seems to have stuck to the nose and mouth.

3. As Mino-sea slug, eating cnidarians sea slug, the store nematocysts cells that eat into the body,In case of emergency, release the cells that store nematocysts. Not only get energy from food in order to live, sea slug are used as a means of defense. I has achieved just to kill two birds with one stone. When the enemy in the mouth, the attack is carried out all at once nematocysts. In the mouth, it is the battlefield. Stimulation of Mino-sea slug, erect Mino.

Mino sea slug

4. Mino sea slug kind of sea slug, upon receiving a strong stimulus from the outside, Mino projections autotomy. Mino was autotomy is about one hour seems to work. As lizards, by cutting themselves a part of the body, I am running away from predators.

5. Such as sea sponge and sea moss from the sea slug of feed,and  generating chemicals to protect themselves, such as terpene-phenol-steroids. Sea slug can also escape from predators or to secrete substances such science, or by light emitting light.

In this way, the law is on parade of defense. Equipped with one or more of these, and protect themselves from predators. However, it is not perfect defense of these laws. It has been confirmed that increase the survival experiments, that it is not 100% protection be provided with these protective methods have been reported.