What a great question about something in our body, Asher. Blood is inside our body, but we see it on the outside when we bleed, like when we get a cut or a nose bleed. Blood is red because of ...

The United States is facing an emergency blood shortage, according to the American Red Cross, and there is growing concern that a combination of severe winter weather and seasonal respiratory ...

The American Red Cross’s national blood inventory dropped by more than 25 percent in July, driven in part by extreme heat throughout the country, the organization announced Monday. The organization ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Most people picture blood as red: bright and oxygen-rich ...