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 ...

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 ...

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 ...

Quick question. What color is snow? If you said white, well, of course, you're right. But here's something you might not know. Sometimes snow can look green or orange or red because patches of snow ...

You might think of glaciers as vast fields of white snow. But some of them are changing colors. In Greenland, glaciers are turning a deep purple-grey — almost black. In Antarctica, they're peppered ...

Anyone taking a stroll down the South Packery Channel Jetty in Corpus Christi has probably noticed something out of the norm recently — and it’s a bit smelly. Red algae called Digenea simplex is ...

“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 ...