1, jellyfish is poisonous. Jellyfish is a sea-born coelacanth, jellyfish body is umbrella-shaped, the body is translucent, white, green or yellow, can secrete venom, its role is to touch small animals, can release venom paralysis, to do food.

2, jellyfish venom can cause varying degrees of damage after stinging the human body, such as the sea wasp jellyfish, stinging filaments can be secreted cobra-like venom, the most harmful to humans, stings can cause death in 5 minutes. Monk jellyfish contains "hypnotic toxin", this toxin is composed of peptides and proteins and small molecules containing nitrogen, after stinging the human body, the patient for many days to eliminate the pain. China's coast is common with the cold currents floating in the Yellow Sea along the sand jelly, can secrete peptide poison, its toxicity directly attack the human heart.

3, jellyfish can be eaten. Experts said, jellyfish toxin storage and distribution in the capsule, 1 gram of the capsule contains 55 million single spiny capsule, generally after the fishing, processing and handling of its toxicity can quickly disappear.