Definition
Polychaeta is a class of segmented worms, mostly marine, characterized by having numerous bristles (setae) on each segment. 🌊 Think of them as the 'many-haired' worms of the sea. They are found in a variety of marine habitats, from shallow waters to the deep sea. They exhibit diverse feeding strategies, including predation, scavenging, and filter-feeding. They play important roles in marine ecosystems. Some species are brightly colored and visually striking.