With spring break just days away, red tide has been reported in several Florida locations, bringing respiratory problems to some and fish kills to some beach hot spots. The worst water samples are ...

“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 ...

Glaciers around the world are turning beautiful but menacing shades of pink, red, purple, and green. Eric Maréchal has seen it firsthand in the European Alps. About 20 years ago, as he trekked through ...

Some red algae exhibit structural color that gives their growth tips a blue hue and the rest of their bodies including their fruiting structures a white hue. Moreover, since the color-producing ...