Hologram protesters march in Spain against controversial “security” law.

Rise and Shine

Diaphonization, or clearing and staining, is a chemical process used with vertebrate specimens in order to highlight their skeletal structures. Alizarin red bonds to bony skeletons, and alcian blue bonds to cartilaginous skeletons, as seen in this skate. It works best with small specimens that have delicate structures - this lil’ guy was the size of my palm.

Just one of more than two million fish specimens at The Field Museum!