Coral
Videos
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 impor
Brain coral spawning
Anatomy of a stony coral polyp
Montastraea cavernosa polyps with tentacles extended
Polyp (zoology)
Videos
A polyp in zoology is one of two forms found in the phylum Cnidaria, the other being the medusa. Polyps are roughly cylindrical in shape and elongated at the axis of the vase-shaped body. In solitary
Coral
…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 important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group…
Gorgonian polyps in a reef aquarium
Polyps of a colony of Cnidaria