Rising acidity reduces the rate at which reefs develop. Crucial to coral health are colorful algae called zooxanthellae. These algae live in coral polyps, providing coral with its bright color.

Read about different predator-prey relationships on the reef. Like lions on the prowl ... Named for their bright colors and beak-like mouths, parrotfish (Scaridae family.) are large herbivores ...

the coral reef and its denizens. Clownfish get their name from the bold color strokes on their body (from rich purplish browns to bright oranges and reds and yellows), often divided by stark lines ...

On Grace Bay in Providenciales, you'll find a footpath just offshore near the Coral Gardens Resort. Follow that path to floating buoys that will guide you on your Bight Reef snorkel. A series of ...

The culprit? Mass coral bleaching. As the name suggests, coral bleaching strips reefs of their color, leaving them completely white. It happens when unnaturally warm ocean water causes coral to ...

Photo from Getty Images / iStockphoto Near an island in the South Pacific Ocean, a bright red sea creature with “canine-like” teeth swam around the coral reef. Maybe it was its vibrant ...

males range from bright electric blue, green, or purplish blue to a relatively dull greenish blue. Juveniles and females are primarily a red-orange color, which fades to white on their bellies.