Coral is like a rock that decided to get a little artsy, but instead of paint, it uses tiny floaty creatures that join together like a weird underwater club. They hang out in the ocean, look pretty in different colors, and are basically just fancy plant-like structures that don’t move. Think of them as nature’s very slow builders creating underwater skyscrapers, but they're actually made of the remnants of tiny sea polka-dot things. They’re kind of like the ocean's version of a cheese platter—lots of variety and often found in warm, sunny places, attracting all sorts of fishy party guests!