Tube Feet

Real World Example

Imagine trying to move a heavy piece of furniture across a smooth floor without it slipping. It's a bit like how echinoderms, such as sea stars, navigate the ocean floor using their tube feet. Just as you might use suction cups to get a better grip on the furniture, tube feet are hollow tubes ending in suction cups that help echinoderms stick to surfaces, move around, and even grab onto food. In both cases, the key is the use of suction to create a firm grip, allowing movement and manipulation in a controlled manner.