Earthworm Movement - Peristalsis - Peristaltic locomotion - Monsoon

The movement of an earthworm is known as peristalsis or peristaltic locomotion. This process involves the rhythmic contraction and relaxation of both circular and longitudinal muscles within the earthworm's body segments. These muscle contractions create waves of movement, while tiny bristles called setae anchor the worm to the soil, allowing it to crawl forward. Here, an earthworm is crawling across the wet floor during the rainy season while trying to climb a slope. During this time, a moringa leaf is getting stuck to it in Tehatta, West Bengal, India, on September 14, 2025.