Octopus is a mollusk, they live in the ocean. They are also very intelligent creatures and have many ways to protect themselves. The means we often see is to change color and hide ourselves well.
For another example, when they are provoked or feel that their lives are in danger, they will bite people, and they will contain toxins, which are harmful to the human body. But these toxins can have different symptoms for different people. Most people will soon develop symptoms, such as dizziness, nausea and so on. Others will have more serious symptoms, such as sudden confusion of consciousness. Therefore, it is recommended to deal with octopus bites in time, such as cleaning with potassium permanganate solution, and so on, if necessary, timely medical treatment is needed.
As mentioned above, octopus will have many ways to protect themselves. In addition to biting, there is also a measure of inkjet. Octopus body structure, there is a special structure called ink sac, as the name implies is the storage place of ink. The octopus can control the contraction of the ink sac, so that it can spray ink out, just like the contraction of a balloon. When faced with enemies or other threats, octopuses will spray ink. The ink will blacken the surrounding sea water and paralyze the enemy's sense of smell, so that the octopus can escape or choose other ways to hide itself.
