The blue-ringed octopus can't be eaten after it is cooked, because it is poisonous.
The blue-ringed octopus is a small invertebrate belonging to the squid family. Its name comes from the blue ring pattern on its body. Although the blue-ringed octopus is very small, it is one of the most dangerous marine creatures in the world, because the toxins produced in it are extremely toxic.
The body length of the blue-ringed octopus is generally about 10 cm, which is grayish white or yellow, and there are obvious blue rings scattered on the body surface. These rings are relatively inconspicuous at rest, but when the blue-ringed octopus feels threatened or excited, their colors will become bright to warn potential predators.
Although the blue-ringed octopus is small in size, it is extremely toxic. The venom of the blue-ringed octopus contains strong neurotoxins, one of which is called blue-ringed octopus toxin. The blue-ringed octopus mainly lives in coral reefs and rocks in Australia, Indonesia and the Philippines.
They usually hide in cracks, rocks or corals on the seabed, and rarely take the initiative to appear in open waters. The blue-ringed octopus is a kind of Nocturnal Animals, which leaves its hiding place in search of food at night.
Matters needing attention in purchasing Octopus
1, store reputation and legality: choose a store with good reputation and legal operation to buy. Ensure that the store has relevant business license and compliance certificate, and follow reasonable breeding and sales norms.
2. Health status: Observe the overall health status of octopus when purchasing. Octopus should be lively, with bright eyes and complete tentacles. If you find abnormal behavior, wounds or other problems, which may be a sign of health problems, you should avoid buying such octopus.
3. Source and culture method: Understand the source and culture method of octopus. Give priority to octopus with reliable sources and good breeding conditions, and avoid wild fishing species to maintain ecological balance and sustainable development.
4. Adapt to the environment: Make sure you have a suitable aquarium or sink to accommodate octopus, so as to provide a suitable living environment. Octopus needs enough space and proper water quality to live and swim.
5. Purchase quantity and collocation: If you plan to buy more than one octopus, make sure there is enough space and resources to meet their living needs. At the same time, understand the sex and way of getting along with octopus, and avoid putting incompatible individuals together.
Reference to the above content: Baidu Encyclopedia-Blue Ring Octopus