Genus Aplysia is a type of marine mollusk commonly known as sea hares. They are herbivorous and have an unusual appearance, resembling a large slug with two antennae and a pair of wing-like structures. Synonyms for Genus Aplysia include sea slugs, sea rabbits and dolabella. They belong to the family Aplysiidae and are found in warm coastal waters around the world. The name Aplysia is derived from the Greek word "aplysso" which means to wash, possibly referring to the way the sea hare uses water to dislodge potential predators. Due to their unique features, they have become increasingly popular in scientific research and as pets.