planarians

Planarians are flatworms known for their remarkable ability to regenerate lost body parts. They have a simple body structure with a head, tail, and a central trunk, and possess a primitive nervous system with a brain-like structure. Found in freshwater environments, they use tiny cells called neoblasts to repair and regrow tissues. This regenerative capability makes them a valuable model in scientific studies of healing, cell biology, and development. Despite their simple appearance, planarians demonstrate complex biological processes that shed light on tissue regeneration and stem cell functions.