They tend to be common in the intertidal zones around the world.

It is found from the intertidal zone to 160 m.

Its members are small and generally live in the intertidal zone.

It is most common in the upper half of the intertidal zone.

It is found in intertidal zones and down to about two hundred feet.

Some live in the intertidal zone, between low and high tide.

They are usually found in the intertidal zone to 3 m below the low water mark.

Also in the intertidal zones, animals find that much of their work is done for them.

About 300,000 species have been found in the intertidal zone.

The conditions of its formation were in or near the intertidal zone.