It doesn’t breathe fire, but the tiny Blue Dragon (~3cm in length) is known to deliver extremely painful and dangerous stings by acquiring venomous matter from species like the infamous Portuguese Man O’War. It feeds on the Man O’War and steals what are known as “nematocysts”, storing them in sacs in its body to use against future prey. The six-armed Blue Dragon is actually a sea slug, living in the pelagic zone of the ocean - meaning neither close to the bottom nor near the shore. It moves by floating upside down, using the water’s surface tension to buoy itself, moved along by winds and currents. Despite its distinctive blue-white patterning, it cleverly travels unseen by using a type of camouflage known as “countershading”, with a darker upper body and a lighter underneath. The blue side of the body faces upwards, camouflaging with the blue of the water when seen from above, while its silver or grey underside blends with the light that reflects on the ocean’s surface, disguising the little dragon when it is seen from underwater.