Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.

When it comes to our blood-producing stem cells, biologists have learned that bigger is not better. And a study has taken a look at the accomplishments and obstacles of an in-progress attempt to restore a large belt of degraded land...

With macrophages covered, let's move on to another innate immune cell type, dendritic cells. These are able to capture and present antigens to the T cells of the adaptive immune system, prompting a variety of outcomes. Let's take a look...

In this video, we discuss how blood cells are made - everything from red blood cells to white blood cells and platelets.