The 15 Most Unusual Coral Species: #8 Will Astonish You!

7. The Brain Coral (Diploria labyrinthiformis)

Among the most identifiable coral species worldwide, the Brain Coral is distinguished by its complex, maze-like patterns that reflect the surface of a human brain. Massively spherical colonies made of this slow-growing yet long-lived coral can survive for several decades. The very effective way the Brain Coral gathers food and exchanges gases makes it quite unique. Meanders, the intricate folds and ridges on its surface, significantly expand the surface area of the coral hence optimising its gas exchange and feeding efficiency. An essential habitat-forming species on the reef, the structure of the Brain Coral offers many nooks and crannies where small fish and invertebrates find cover. Though it looks strong, the Brain Coral develops rather slowly—usually less than one cm annually. This modest rate makes it very sensitive to environmental changes and damage. Population of Brain Coral is seriously threatened by pollution, ocean acidification, and climate change. For researchers examining coral adaptability and reef dynamics over extended times, nevertheless, their durability and tenacity have piqued curiosity. Like tree rings, the growth bands of Brain Corals can offer insightful details about historical environmental circumstances and climate trends. Researchers are looking at them. Knowing the secrets of the longevity and adaptability of the Brain Coral could offer vital information for coral protection plans in view of world climate change. {3}

8. The Pillar Coral (Dendrogyra cylindrus)

The Pillar Coral is a really amazing species that distinguishes itself from its coral brethren in more respects than one and will wow you. Tall, cylindrical columns created by this peculiar coral can reach heights of up to two meters, producing an underwater scene evocative of ancient Greek ruins. The Pillar Coral is really remarkable because of its unusual behaviour and reproductive technique. Pillar Corals keep their tentacles extended during the day, giving them a fuzzy, swaying look that has earned them the moniker "Fuzzy Finger Coral." Unlike most coral species, which extend their tentacles just at night to feed, this daytime feeding strategy allows them to capture plankton and other small organisms continuously, so optimising their nutrient intake. Still, the Pillar Coral's reproductive behaviour is arguably most remarkable. Usually following a full moon, Pillar Corals release both eggs and sperm into the water column in a synchronised action that mimics an underwater snowfall. These corals are hermaphrodite and participate in a remarkable spawning occurrence called "broadcast spawning." Survival of the species and genetic variety depend on this huge spawning event. Unfortunately, a number of factors including habitat degradation, disease, and climate change now classify the Pillar Coral as vulnerable. Studying its resistance to environmental stresses and investigating creative conservation methods, scientists are hurrying to grasp and save this unusual species. The unique qualities of the Pillar Coral and its important function in reef ecosystems make it a flagship species for global coral protection projects. [ 4]