In the cold waters of the Arctic, Atlantic and Pacific Oceans lives a seemingly otherworldly creature, measuring only about 1.9 inches (5 cm), and resembles a freshly made snow angel or a Christmas tree topper – this is the Sea Angel.
Sea Angels are part of the gastropod class (snails and slugs), and are actually a type of floating sea slug. They gracefully swim through the deep waters by waving their wing-like structures. Their yellow-red internal structure can be seen through their translucent bodies and the projections on their heads are thought to be some sort of sensory organ.
Some species of sea angels catch prey by using tentacles that extend from their head. They feed on sea butterflies, a small sea snail related to the sea angels.
Sea angels are hermaphrodites, meaning they are both males and females throughout their lives.