Miniature models of the brain have revealed a "previously unappreciated" role of microglia, a type of cell found within the organ. The finding could help unpack how disorders such as autism arise.

The cells of the immune system circulate mainly in the blood and migrate into the body's tissues after an inflammation. Some types of immune cells, however, are permanently located in the tissues, ...

New research shows that rainwater could have helped create a meshy wall around protocells 3.8 billion years ago, a critical step in the transition from tiny beads of RNA to every bacterium, plant, ...