Blue Dragon

The blue dragon is a type of sea slug, also known as Glaucus atlanticus, that floats on the ocean’s surface and is known for its striking blue and silver colours.

Where can blue dragons be found?

They are found in warm ocean waters around the world, including the Atlantic, Pacific, and Indian Oceans, often drifting with ocean currents.

What do blue dragons eat?

Blue dragons primarily feed on venomous marine creatures, such as the Portuguese man o’ war, jellyfish, and other siphonophores.

Photo credit: Doug Perrin

Are blue dragons venomous?

While they do not produce venom themselves, they store stinging cells from their prey, making them potentially dangerous to humans if touched.

How do blue dragons defend themselves?

They use the stolen venom from their prey to sting potential threats, and their blue coloration helps them blend in with the ocean’s surface for camouflage.

How big do blue dragons grow?

They typically grow to around 3 cm (1.2 inches) in length, though some may reach up to 4 cm (1.6 inches).

Do blue dragons swim?

Rather than swimming, they float upside down on the ocean’s surface, using a gas-filled sac in their stomach to stay buoyant.

Are blue dragons rare?

While not extremely rare, they are not commonly seen due to their open-ocean habitat, and sightings are often linked to strong ocean currents washing them ashore.

Can you keep a blue dragon as a pet?

No, blue dragons are not suitable as pets because they have a specialised diet of venomous marine creatures and require an open-ocean environment to survive.

What should you do if you find a blue dragon on the beach?

It’s best to avoid touching it, as its stinging cells can still cause painful reactions. Instead, admire it from a safe distance and take care when walking near the shoreline.