If you’re swimming across a thriving coral reef, you may mistakenly believe you floated upon a giant underwater human brain.
Brain coral is a hard coral, also known as a stony coral or reef builder. They cluster into colonies and ultimately create the foundation for a reef to form, giving soft corals and many other marine species a place to call home.
These magnificently grooved creatures, from which they get their name, are key parts of a healthy reef.
