Are there organisms with fewer than 1000 neurons?

Some animals have fewer than 1000 neurons, which is like having a tiny brain with not many helpers working together.

Imagine you're playing with blocks. If you had just 10 friends helping you build a tower, that's like how some small creatures think, they don’t need lots of helpers to do their jobs. That’s what happens in animals like _roundworms_, which have only about 302 neurons.

These little brains are still super smart for what they do. For example, a roundworm can eat, move around, and even remember things, all with just a few hundred neurons working together. It's like having a small team of workers who know exactly what to do.

Sometimes, these tiny brains might be simpler than yours or mine, but they're still amazing! They show that you don’t need a huge brain to be clever, sometimes, fewer helpers can do more important work.