Look what I saw, his intricate pencil and ink drawings told the world; this is how your brain is put together. The neurons that allow you to think and feel and move are discrete, individual cells.

More information: Karen J Thompson et al. Plasmon resonance and the imaging of metal-impregnated neurons with the laser scanning confocal microscope, eLife (2015). DOI: 10.7554/eLife.09388 Journal ...

Fluorescently Labeled Adult C. elegans Swims through a Salt Concentration Gradient (VIDEO) University of Tokyo ...