Snake venom is generally a compound substance mainly composed of protein. Tetrodotoxin (TTX) is a powerful neurotoxin, and it is one of the most toxic non-protein substances found in nature at present. It is not actually secreted by the puffer fish itself, but in fact it is produced by a species called Pseudoalteromonas tetrodotoxin (TTX; Protein produced by pseudoalteromonas alternata (also known as pseudoalteromonas alternata) will be denatured at high temperature, so that snake venom will lose its toxicity (it is not clear whether all protein toxins will lose their toxicity at high temperature or will not be transformed into other toxic substances). protein denaturation: under the action of heat, acid, alkali, heavy metal salts, ultraviolet rays, etc., protein will change its properties and coagulate, which is irreversible and cannot be restored to its original protein. This effect is. After protein's degeneration, it lost its original solubility and its physiological function. High temperature can inactivate most protein, but it can't inactivate alkaloids. It is generally believed that the evolution of snake venom is an accidental result. It is likely that the original form of snake venom is just a powerful digestive enzyme, which can help to decompose food quickly. However, when the snake's gene is copied, there is a mutation, so that the digestive enzyme can quickly paralyze the nerves and hearts of animals. Since then, natural selection has made these protein more and more lethal. The tetrodotoxin is widely found in many marine organisms, but its forms are different. It is generally believed that its evolution process is a complex toxin formed by these animals after eating the toxic Vibrio coccinella and conch peculiar to the ocean and absorbing the toxic bacteria from these plants and animals.