It has long been thought that only nerve and heart cells use electric impulses to communicate, while epithelial cells -- which compose the linings of our skin, organs and body cavities -- are mute, ...

Nope, this isn’t a small, prickly mammal with a flashy dye job, but a single intestinal epithelial cell. The colorful, hairlike structures are microvilli, which are designed to maximize the cell’s ...