Blue Dragons In Ocean 2025. The blue dragon, only 2 to 3 centimetres in length, is easy to identify by its striking electric blue and grey colours and floats on the surface of the water. The blue sea dragon, a type of venomous sea slug that lives in the open ocean, has recently been spotted at cape hatteras national seashore, likely stranded following.

According to the cape hatteras national seashore, the blue sea dragon, also known as the glaucus atlanticus, is a species of sea slug that lives in the open ocean and is of. It has adapted to live on the surface of the ocean, where sunlight is abundant, which also influences its remarkable coloration that serves as an efficient marine.