Nov 22, 2021 · Corals form true reefs when they grow close together and deposit layer after layer of limestone, several feet high. Many different kinds of fish depend on coral reefs for food and …

Corals are colonial marine invertebrates within the subphylum Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the …

Welcome to Corals of the World Information, identification, distribution and taxonomy of reef building corals Find your species Coral Taxonomy

Oct 15, 2024 · A coral reef is a term used to describe the collective structure of hard corals that help shape a coral reef ecosystem. “A coral reef is a reef whose main structure is made by living …

May 25, 2026 · The meaning of CORAL is the calcareous or horny skeletal deposit produced by anthozoan or rarely hydrozoan polyps; especially : a richly red precious coral secreted by a …

Corals are small marine animals. The “hard” type of coral grows with the help of algae, which gives it color and nutrients that help it form a sturdy, stony skeleton. Reefs, which form through the …

Jan 27, 2026 · Many people think of coral as hard, rock-like formations that attract abundant, diverse marine life. In fact, corals are tiny marine animals called polyps that live together in colonies.

CORAL definition: the hard, variously colored, calcareous skeleton secreted by certain marine polyps. See examples of coral used in a sentence.

May 19, 2026 · Coral reef, ridge or hummock formed in shallow ocean areas by algae and the calcareous skeletons of coral polyps and other coelenterates. A coral reef may grow into a …

Corals are in fact small animals, called polyps, in the shape of sea minnows that can form colonies. These polyps make a common skeleton which for some species become the foundation of a coral reef.