Photo: Nick Hobgood · CC BY-SA 3.0 (Wikimedia Commons)
Scientific name
Millepora alcicornis
Group
Cnidarians (corals, anemones, jellyfish)
Rarity
Common
Where to see it
Caribbean & Tropical Atlantic, Indo-Pacific & Red Sea
Conservation status (IUCN)
Endangered
Did you know?
Despite its name, fire coral isn't a true coral but a colonial hydrozoan. Touching it triggers an intense burning sensation thanks to its stinging cells, hence the well-earned name.
What defines this group — Cnidarians (corals, anemones, jellyfish)
Corals, anemones and jellyfish: the same simple animal, anchored to the bottom or drifting in open water.
All armed with cnidocytes, harpoon cells that fire on contact.
A body arranged in rays around a single opening, serving as both mouth and exit.
Hard corals host algae in their tissue: it is their departure that causes bleaching.