Chitons are marine mollusks belonging to the class Polyplacophora. They are characterized by their eight overlapping shell plates, which provide protection and flexibility. Chitons typically inhabit rocky shorelines and can be found clinging to rocks in intertidal zones. They feed primarily on algae using a specialized mouthpart called a radula. These creatures have a unique ability to curl up into a ball when threatened, similar to how some armadillos protect themselves. Chitons are also known for their vibrant colors and patterns, which can vary widely among species. They play an important role in their ecosystems by grazing on algae and contributing to the health of marine environments.