Is a sea urchin porsones

Yes, some species of sea urchins can be poisonous. They possess spines that may contain toxins, which can cause painful injuries if stepped on or handled. Additionally, certain types of sea urchins, like the green sea urchin and the black sea urchin, can be toxic if consumed due to harmful algae in their diet. It's essential to exercise caution when encountering them in the wild.