The cylindrical body of sea cucumber is covered with thorns and looks like cucumber. This limp body has no powerful self-defense weapon and no ability to swim quickly. It can only rely on the contraction of the abdominal tube foot and muscles, and it is difficult to resist the enemy's attack. Although it looks strange, it occasionally scares each other and likes to hide in the cracks of rocks, but because it is weak and incompetent, it will inevitably be attacked by other marine animals. However, sea cucumbers have their own protection methods. Sea cucumber will play "separation" when it can't get rid of the enemy's attack. Through the intense contraction of the body, the internal organs are quickly thrown from the anus to the enemy, turning harm into benefit. After the sea cucumber loses its internal organs, it will grow its internal organs again after several weeks of rest. With this superb skill, sea cucumber can escape from the enemy and protect itself.
Squid, although it is customary to call them fish, is actually not a fish, but a mollusk living in the ocean. Taxonomically, squid belongs to mollusca-Cephalopoda-Diptera-Decapoda. Squid has two gills as respiratory organs; The body is divided into head, short neck and trunk. There are a pair of developed eyes and wrist feet around the mouth on both sides of the head.
At present, there are two kinds of squid on the market: one is a squid with a large trunk and its name is "squid"; One is squid with a slender trunk. Its name is "soft fish", and the small soft fish is commonly known as "small tube".
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