Which anatomical feature do crustaceans possess?

Crustaceans are a diverse group of arthropods characterized by specific anatomical features that set them apart from other groups. One of the defining characteristics of crustaceans is that they possess mandibles, which are specialized mouthparts used for grasping and chewing food. Additionally, they typically have five or more pairs of legs, which can vary in function based on their environment and lifestyle. This feature contributes to their ability to navigate their aquatic habitats effectively, whether they are swimming, crawling, or burrowing.

The presence of five or more leg pairs is especially significant as it reflects the adaptive nature of crustaceans, allowing different species within this group to thrive in various ecological niches. This anatomical setup is essential for their survival and feeding strategies, making it a key characteristic in defining crustaceans.