Each year, we bring you the most compelling microscopic videos from the annual Nikon Small World in Motion competition. And each year, the videos paint detailed pictures of entire worlds hidden with our own. This year's winner is a stunning video by Dr. Eduardo E. Zattara from the National Scientific and Technical Research Council in Argentina depicting migrating neural crest cells during zebrafish development. To capture it, Zattara used 20x objective lens magnification, as well as brightfield,