As you swim toward the coral reef, you cannot believe what you see. Below you are living things of every color, shape, and size. A red sea star sits on a white mound of coral. A brown crab dances past a bright-blue sponge. A blue and yellow fish peeks out from between the green and purple fingers of an anemone.

The living things around a coral reef depend on each other for food and shelter. How do the living things in your neighborhood depend on each other?