A coral colony member is a POLYP, which is a small, soft-bodied organism that is typically found in aquatic environments. Polyps are usually attached to a surface and have a cylindrical body with a mouth at one end and tentacles surrounding it. They are part of the Cnidaria phylum, which includes jellyfish, sea anemones, and corals. Coral colonies are formed when multiple polyps join together and secrete a hard calcium carbonate skeleton. The polyps then feed on plankton and other small organisms, and use their tentacles to capture prey.