Researchers report that when young and old mice were surgically joined such that they shared blood circulation for three months the old mice did not significantly benefit in terms of lifespan. In ...

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 ...

Whether it’s a tiny snail or a massive whale, most living organisms rely on blood flowing through their bodies to stay alive. This precious fluid fights infection, delivers nutrients and gases to ...