Miniature organs on a chip could allow us to do scientific studies with great precision, without having to resort to animal testing. The main problem, however, is that artificial tissue needs blood ...

Anemia is when your bone marrow doesn't make enough red blood cells. Or the red blood cells you do have don't work well. Red blood cells carry oxygen throughout your body. They’re made in the ...

Now we have a gray squirrel with an orange tail in Winston-Salem ... be all black to all white with a range of colors in between. Red squirrels are typically only found in the mountains and ...

A new antivenom relies on antibodies from the blood of Tim Friede, who immunized himself against snakebites by injecting increasing doses of venom into his body.

At the intersection of a red meat allergy and a cancer-drug reaction investigations, researchers pinned a lone star culprit.