These tube feet combines with mucous-coated cilia, and it catches food that is favored by the sand dollar. Some of these favored foods are cod and haddcock. The sand dollar likes to mainly feed on small worms and algae. The sand dollars eat the food by consuming it on the underside of itself, and with a set of five teeth, chew and swallow its food. These mouths are much like a bird beak because it can be used to scrape things like algae off of rocks.
Sand dollars reproduce through pores.
Spawning adults shoot out clouds of eggs or sperm. The eggs are fertilized by the moving currents. They develop into tiny swimming larvae. After a month the larvae sink to the bottom, and then start to grow a protective shell. Sand dollars only live on very sandy beaches.