File:Leafy Sea Dragon video.webm

English: The leafy sea dragon, Phycodurus eques, is a marine fish related to the seahorse. It is the only member of the genus Phycodurus. These creatures are found around southern and western Australia and generally remain in shallow, temperate waters. Their name comes from their appearance, with long leaf-like protrusions coming from all over the body. These protrusions are not used for propulsion; they serve only as camouflage. The leafy sea dragon propels itself by means of a pectoral fin on the ridge of its neck and a dorsal fin on its back closer to the tail end. These small fins are almost completely transparent and difficult to see as they undulate minutely to move the creature sedately through the water, completing the illusion of floating seaweed

Much like the seahorse, the leafy sea dragon's name is derived from its resemblance to another creature (in this case, a mythical sea monster from Irish legends, called the "Cler"). While not large by sea monster standards, they are very large for sea horses, growing to at least 18 inches (45 cm). They feed on plankton and small crustaceans.

The lobes of skin that grow on the Leafy Sea Dragon give it the appearance of seaweed, allowing it to camouflage with its surroundings. Its leafy appearance also allows it to appear to move through the water like a piece of floating seaweed. The Leafy Sea Dragon can also change color to blend in, but this ability relies on the sea dragon's diet, location, and stress levels.