Choosing the right place to settle is a major step for young barnacles, as they must choose a favorable spot where they can safely grow. If they make the wrong choice they will suffer, as they cannot move again.
Barnacles are marine animals, commonly found on rocks, driftwood, shells of turtles, whales, and among corals. The acorn
barnacles are usually found on the middle part of the seashore. Here, they are regularly covered and uncovered by the tides which bring them food and oxygen. They have small volcanoshaped shells made of four to six plates cemented directly on the rocks. At the top is an opening guarded by more shell plates.These can be opened, and then closed tightly to keep water inside when the tide goes
