Do u know that the starfish has no brains? yeah , its a amazing fact. The Starfish are Inverterbrites & its not made by nature. So they don’t require a brain to survive. It means all processes of a starfish inside is very simple and interconnected. The starfish have a network of nerves & it helps them to gather information, make decisions, and survive.It is probably a more central part of this network & its able to integrate sensory information from different parts of the body.