"Brainbow" zebrafish. Neurons are labeled in multiple colors with "Brainbow" (Nature, 2007) fluorescence microscopy. Three fluorescent proteins (cyan, yellow, and red) are randomly taken up by vari...

Sensory axons (long, slender nerve fibers) covering the tail of a 3- day-old larval zebrafish. This "Brainbow" image was collected using confocal microscopy. In the Brainbow technique (Nature, 2007), ...