Do earthworms have brains?

While an earthworm has a brain, it is somewhat different from a human brain because it only controls the way that the insect feels and moves. A human brain is responsible for much more than that. Due to the size of the worm, its brain is much smaller than the brains of humans or other animals. read more

Hearing: Earthworms have no ears, but their bodies can sense the vibrations of animals moving nearby. Thinking and feeling: Worms have a brain that connects with nerves from their skin and muscles. read more

Earthworms do not have eyes (although some worms do), however, they do have specialised photosensitive cells called "light cells of Hess". These photoreceptor cells have a central intracellular cavity filled with microvilli. read more