A Blackbar
Soldierfish, its dorsal fins erect, patrols in front of an orange
sponge. Normally shy, they rarely venture far from the safety of
caves and coral outcroppings.
Sea
Facts:
Tiny coral
polyps are the major reef building organisms of the seas. Corals secrete
calcium carbonate (limestone) and build massive colonial structures.
In fact, the Great Barrier Reef can be seen from outer space.
Life in the Seas: All images, underwater photography, and content copyrighted by
George Perina. This
domain available.