How big is a scorpion brain?

A scorpion's brain is relatively small, typically measuring just a few millimeters in size. It is not a single organ but rather a collection of nerve tissues located in the head region. Despite its size, the scorpion's brain is highly efficient, allowing it to process sensory information and control its movements effectively. Overall, the simplicity of its brain structure reflects the scorpion's adaptation to its environment and lifestyle.