There are no eyes on starfish. People always think that starfish rely on their antennae to identify directions. In fact, this is not the case. There are many tiny crystals growing on the spinous skin of starfish, and each crystal can function as an eye, allowing starfish to observe information from all directions at the same time and grasp the surrounding situation in a timely manner. Illustration of stitches for crocheting starfish. Friends who like marine element decoration can knit one~~~