1.The person who found a blue dragon sea slug — whose sting can cause nausea, vomiting, and an allergic skin reaction — and thought, "I'll just go ahead and pick that up": ...

But the sea slugs in the group Aeolida are practically impervious to ... Glaucus atlanticus - also known as the sea swallow, blue angel or blue dragon - looks especially unusual. The cerata of this ...