robert krulwich
NSFW Tumblr
find robert krulwich on porn pin board
robert krulwich clips
xxx tumblr
fyeahmicrobiology: A very pretty visualization of how an influenza virus invades your cells.Also Robert Krulwich is the shit, and he and animator David Bolinsky made this happen. If you haven’t already, check our RK’s blog at NPR, it’s an amazing
