The first Friday of February is National Wear Red Day, where the nation is encouraged to wear red to raise awareness for cardiovascular disease. This year, National Wear Red Day lands on Friday ...

Many scientists believe the red-eyed tree frog developed its vivid scarlet peepers to shock predators into at least briefly questioning their meal choice. These iconic rain-forest amphibians sleep ...

But some dyes — like Red No. 3 — have links to cancer, behavioral disorders, and other health issues. Now, after more than 30 years, the FDA is banning Red No. 3 in cereals and other food ...