Crustaceans
Crustaceans are aquatic arthropods, characterized by their hard exoskeleton and segmented bodies. They constitute a diverse group, encompassing various forms and sizes such as shrimp, crabs, lobsters, and crayfish. Crustaceans inhabit freshwater, brackish water, and marine environments, playing significant roles in their respective ecosystems. Their hard protective shell enables them to withstand environmental pressures and predators while providing a rigid structure for muscle attachment. The segmented body plan facilitates movement and flexibility. These fascinating creatures display complex behaviors, including intricate courtship rituals and social hierarchies, making them an essential category under Animals, Zoo Animals, and Marine Life.