brain coral or mussidae and merulinidae, these belong to phylum cnidaria, anthozoa, flower animals

brain coral mussidae merulinidae phylum cnidaria anthozoa flower animals animal aquatic art beautiful biology reef underwater corals design marine fauna ocean water background sea stony aquarium labyrinth polyp skeleton stone maze textured pattern biodiversity stress temperature warming saving global ecology death damage climate change cnidarian life scleractinia