Add Yahoo as a preferred source to see more of our stories on Google. With spring break just days away, red tide has been reported in several Florida locations, bringing respiratory problems to some ...

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 ...