Yes, the shrimp monster is a common seafood. Its scientific name is hermit crab, also called alien shrimp. They belong to Arthropoda, Crustacea, Decapoda. Shrimp monsters are fierce. They usually find the conch and eat the snail meat, and then take its shell for themselves. As they grow up, they will put on different shells to live. Shell is the protection of shrimp monster. Usually it crawls with a negative shell, and when it is frightened, it will immediately shrink its body into the shell. The head of the shrimp monster has two big claws, which are used for predation and defense. Their first two pairs of feet are long for walking, and the last two pairs are small for supporting the inner wall of snail shells and keeping their bodies stable. The belly of the shrimp monster is soft and long, which can be coiled in a snail's shell. When frightened, they will quickly shrink into the snail shell and block the entrance of the snail shell with their claws to protect themselves.