They discovered that a certain kind of cells of the red algae, called the "gland cells," contain bodies of tightly packed microspheres of a light-reflecting material. In the growth tips of the red ...

The brown alga Sporochnus dotyi reflects shimmering green and blue light when illuminated from above. An example of structural coloring, the effect has been discovered by scuba divers and is not known ...

“The inside of the structure that causes the coloration contains a substance that is highly reactive and may act as a feeding repellent to algae-eating fish. Such a repellant is more effective when ...