There are basically four types of algae, based on their color: green, blue-green, red, and brown. Green and blue-green algae are found in freshwater as well as saltwater. Red and brown algae are found ...

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.

Chameleon shrimp can change their color to camouflage themselves among the algae they inhabit, helping them to escape from predators. Their appearance shifts from red, brown, green, or even ...

The Florida Department of Health in Orange County has issued a health alert for blue-green algae toxins found in Lake ...

The White Cliffs of Dover are stunning natural phenomena that get their signature color from dead algae. Produced by Arielle Berger. Original reporting by Jessica Orwig. Follow BI Video ...

Its colorful bands are the product of hardy bacteria and algae that live in the scorching water. The beating heart of Yellowstone National Park is without a doubt the Grand Prismatic Spring—the ...