Seamounts, A Deep-Sea Habitat

Thousands of seamounts—most of them undersea volcanoes—tower above the muddy seafloor. They provide something hard to come by in the deep ocean: a solid surface to cling to. This photo gallery shows some of the organisms that have found a suitable home on seamounts. 

A variety of corals cling to Manning Seamount, just off the coast of Cape Cod, Massachusetts.
A white coral (Corallium sp.) and two vase sponges (left) grow on an Atlantic Ocean seamount. Photograph of an orange many-armed sea star on an erect delicately-branched coral in a dark sea.Colorful corals and brittlestars on Manning Seamount off the New England coast.