Aplysia

Aplysia is a genus of sea slugs, often called sea hares, known for their large, soft bodies and simple nervous systems. Scientists study Aplysia to understand basic neural processes like learning and memory because their nerve cells are large and accessible, making it easier to observe how the nervous system works. Despite their unassuming appearance, they play a crucial role in neuroscience research. Aplysia are gentle, slow-moving creatures found in cold, shallow waters, contributing to the health of marine ecosystems by grazing on algae.