Grooved-Brain Coral [Diploria labyrinthiformis] --- Brain coral is a common name given to corals in the family Faviidae so called due to their generally spheroid shape and grooved surface which resembles a brain. Each head of coral is formed by a colony of genetically -dentical polyps which secrete a hard skeleton of calcium carbonate; this makes them important coral reef builders like other stony corals.
Boulder brain coral (Diploria strigosa), the spawning of this is super cool to watch. It disperses only eggs or sperm. It releases their eggs, investment is small. But SECORE takes these babies and grows back in lab at ZOOOS (aka my job)!
Images via: Coral at Abu Dabab Reefs, Red Sea, Egypt by Derek Keats, Brain Coral by Ryan Somma, Soft Corals by Matt Kieffer, Coral (Goniopora) by Samuel Chow, Coral Slime by Jason Hollinger, Brain Coral by Steve L. Martin, Coral by Markus Mindaugas Urban, Large coral polyps out at night by Derek Keats, Bubble Coral by Samuel Chow, Brain Coral by Hadley Paul Garland