oligochaetes

Oligochaetes are a class of segmented worms, including earthworms and similar species. They are characterized by their divided, tubular bodies made up of many repeating segments. These worms play a vital role in soil health by breaking down organic matter, improving aeration and nutrient cycling. They have bristles called setae on each segment, which help them move through the soil. Oligochaetes lack a prominent head or specialized sensory organs but can sense their environment. They are important for ecosystem functioning, contributing to soil fertility and supporting plant growth through their burrowing and decomposing activities.