👉 Ampelasia is a type of fish that undergoes an abnormal development during its life cycle, typically occurring in young fish and capable of causing significant physical damage or death. These fish have a single central nervous system (CNS) without any spinal cord, which results in them being unable to respond to stimuli and survive the environment they inhabit. Ampelasia is often associated with some forms of parasitism, such as the Plasmodium malariae parasite in humans, and can result