It’s often deemed the first color, the strongest color, the color that stands for color itself. So why does it keep slipping ...

A canal in Argentina mysteriously turned bright red on Thursday, alarming residents who were woken up by its strong odor.

Blood Falls in Antarctica flows unpredictably with iron-rich, salty water. Microbes inside survive without sunlight.

A stream winding through a populous area on the outskirts of Buenos Aires has turned crimson red in recent hours, sparking ...

A stream outside Buenos Aires has turned crimson red raising fears among residents. Local officials suspect the presence of a ...

A stream on the outskirts of Buenos Aires turned blood red on Thursday, causing anxiety among residents who blamed it on ...

The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But ...

From Taylor's Valentine's-ready ruby manicure to Lady Gaga's glamorous goth talons, the Grammy nails were a visual feast for ...

We were sharing stories of childhood injuries recently, some from our own early years or those of our children, each anecdote bringing to mind yet another feat of courage or daredevil challenge ...

The Defense Advanced Research Project Agency, the Pentagon's top research arm, wants to find out if red blood cells could be modified in novel ways to protect troops and help them manage extreme ...

Eating foods high in key nutrients, including iron, folic acid, and vitamin B12, and limiting alcohol may help increase your red blood cell count. Red blood cells are the most common cells in ...