Watch their tube feet wiggling!
Sea stars are beautiful animals that can be a variety of colors, shapes, and sizes. All of them resemble a beautiful star but while some sea stars appear smooth, they all have spines covering their upper surface and a soft underside.
Hundreds of tube feet are located on their underside. The sea stars move by using the tube feet, and they can move quicker than you might expect.
Closely study how a sea star is moving around on the sand and be inspired .