fbpx

Brain coral is a hard coral made of calcium carbonate, or limestone, which hardens into a rock-like exoskeleton. Slowly over time, the growing skeletal structure forms together in a wavy clump that resembles a real brain. Be brainy about brain coral by reading these cool facts:

  • Corals are part of the phylum Cnidaria (related to anemones and jellyfish) in a class called Anthozoa or “flower animals”.
  • The grooves of brain coral resemble a labyrinth, giving rise to its scientific name ‘labryinthiformis.’
  • Although they look like rocks, brain corals are animals.
  • Brain corals are invertebrates (i.e., they do not have a backbone).
  • The outer surface of brain coral is hard and offers good protection against fish or hurricanes.
  • Brain coral grows in relatively shallow salt water in tropical locations.
  • Grooved brain coral structures only grow a few millimeters each year.
  • Brain corals can live up to 900 years and grow to 6 feet tall! How many living brain coral have you spotted in the waters around St. John?
  • Despite their name, brain corals are completely brainless.
  • Though they appear to be very large, only the outer few millimeters represent living tissue, while the rest is a calcium carbonate skeleton.
  • The living parts of the coral are called polyps. The fleshy, tube-like polyps are genetically identical, each with tentacles that surround its mouth.
  • The polyps secrete calcium carbonate, which builds-up and the brain coral expands, helping to keep the complex coral reef growing and the animals within it safe.
  • Brain coral feeds on small drifting animals, as well as the algae that grows within it. 
  • Brain corals extend their “sweeper tentacles” to sting and catch food at night and retract them into their grooves for protection during the day.
  • Brain corals are hermaphroditic, meaning they produce both eggs and sperm to reproduce.
  • Brain coral release sperm to fertilize eggs within their own colonies.
  • After an egg hatches, larva is released and settles on the surface, where it begins to form a new colony.
  • When a colony on the brain coral dies, its limestone skeleton remains and adds to the structure.
  • Healthy brain coral is good for the ecosystem.
  • Coral and coral reefs are dying at an incredible rate. You can help save the reef by wearing full-coverage swimwear or reef-safe sunscreen.
  • Dead brain coral

Learn more about brain coral on Wikipedia

 

Vacation on St. John for a Week (or more)

If you’re interested in booking St. John Virgin Islands rentals, the best resource is Windspree Vacation Homes, renting Virgin Islands vacation rentals for over 30 years. Book your St. John vacation rental from people who live there and know the island best! For more information on Virgin Islands rentals and St. John USVI rentals, checkout Windspree.com and call or text (340)201-3002.

Estate Fortsberg villa hammock

 

Leave a Review

Your email address will not be published. Required fields are marked *

Previous Next
Close
Test Caption
Test Description goes like this