The FDA says it will allow three new color additives made from natural sources to be used in the nation's food supply.

Purple pigmentation in a diverse array of algae absorbs heat and creates a feedback loop responsible for 2% of total daily ...

Red algae use structural color not just for looks but for protection. Reflective structures signal potential toxicity, ...

But there are two words no one wants to hear before heading to the beach: red tide. And yet, over the past few years, ...