As shown in the picture , ? Sea slugs? (most of them are poisonous) (mostly poisonous) ?

Sea hare family Aplysiidae Sea hare genus Aplysia ? Sea gastropod mollusks

(Various species, different colors)

Most species of sea hares release clouds of color to blind predators when they encounter a hostile species by constriction of the aqueducts, a rapid neural reflex that is essential for animals in the face of danger by firing numerous neurons at once through changes in synaptic potentials (see gill and aqueduct constriction reflexes of sea hares ). Eric's research shows that this nerve conduction is based on the same principles as those studied by neurobiologists using the model species, the California sea hare. With only about 20,000 neurons in its body, the sea hare is one of the favorite subjects of conduction neuroscientists.