How Starfish Move — Reading Comprehension

Starfish, also known as sea stars, have a fascinating method of locomotion that sets them apart from other marine creatures. These echinoderms use a complex system of hydraulic-powered tube feet to navigate their underwater world. Each starfish possesses hundreds of these tiny, tubular structures on the underside of their arms, each ending in a suction cup-like disc. To move, starfish fill these tube feet with seawater, extending them outward and attaching them to surfaces. By coordinating the movement of these numerous feet, starfish can glide smoothly across the ocean floor, climb vertical surfaces, and even right themselves if turned upside down. This unique locomotion method allows starfish to explore various marine habitats, from rocky shores to coral reefs, in search of food and shelter, showcasing the remarkable adaptations of these captivating sea creatures.