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

Argentina's Sarandí Canal turned red after what locals believe was a toxic spill from one of the neighborhood's industrial manufacturers.

Radwah Oda was diagnosed with colon cancer at 30. She shares five symptoms she dismissed, including narrow stools, blood in the stool, pain and fatigue.

IT turns out there’s more to your bum than meets the eye – and we’re not just talking about those backsides hitting the ...

Among North Carolina frankfurter aficionados, the state’s signature bright red hot dog is a thing of pride and beauty. Distinctively tubular, the tradition of these vibrant hot dogs stretches ...

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 ...

Everything from the colour of your stool ... or red or if you have bloody diarrhoea: call 999 or go to the A&E if you’re bleeding non-stop from your bottom of if there’s lots of blood ...

This puts Mars exactly opposite the sun, making our view of the red planet the brightest and ... the night sky until you run into the two bright stars of the Gemini. While Mars will be at its ...