Red algae include nori and dulse. (Yes, nori is a red alga, not green. The green color is a result of its being dried and toasted.) Green algae include sea lettuce and sea grapes. Seaweed is a ...

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 ...

As in leaves or grass, chlorophyll gives algae its green color. Algae use chlorophyll to capture energy from sunlight to feed on surrounding nutrients. How we fertilize lawns, maintain septic ...