What fish has no brain?

That's a common misconception! All fish have brains, even if they are very small in some species.

The idea that some fish have no brain might stem from the fact that some fish have very simple brains compared to mammals or birds. For example, the brain of a goldfish is only about the size of a pea! However, it is still responsible for basic functions like swimming, feeding, and avoiding predators.

So, no fish has no brain. They all have brains, even if they are small and simple. 😊