Starfish is a kind of marine animal, and they are also a typical echinoderm. Starfish are indeed poisonous, but only some species are poisonous. The toxicity is mainly released from spikes on their bodies, which mainly plays a role in predation and defense. Most starfish are non-toxic and edible.

At present, most edible starfish on the market are non-toxic. The nutritional value of starfish is relatively high. Toxic starfish, such as "starfish with thorns", will have some spikes on their body surfaces, and they will secrete some toxic mucus, which can be used when starfish prey or defend against enemies. If a person is accidentally stung by a starfish, there is also a reaction. However, different starfish have different toxicity, and different people have different reactions to these toxicity.

morphological character

Starfish, sea cucumber, sea urchin, etc. belong to echinoderms. They usually have five wrists, but there are also four or six, and their bodies are flat and mostly star-shaped. The whole body is composed of many calcareous bone plates combined by connective tissue, and there are prominent spines, tumors or warts on the body surface. Some have as many as 50 wrists, and there are 4 rows of dense tube feet under these wrists.

Using tube feet can not only catch prey, but also allow yourself to climb on the rocks. The big starfish has thousands of tube feet. Starfish's mouth is in the middle of its lower body, which can be in direct contact with the surface of the object that starfish has climbed. Starfish vary in size, from 2.5 cm to 90 cm, and their body colors are different. Almost every one is different, and the most colors are orange, red, purple, yellow and cyan.