To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4 Microglia actively survey their environment in sham animals. Time-lapse imaging of a microglial cell reveals the highly dynamic processes with which it monitors its environment over 30 min in a sham mpeg1:GFP animal. Scale bar, 15 μm. Rapid clearance of cellular debris by microglia limits secondary neuronal cell death after brain injury in vivo Chiara Herzog, Laura Pons Garcia, Marcus Keatinge, David Greenald, Christian Moritz, Francesca Peri, and Leah Herrgen Development 2019. 146:None-None; doi: 10.1242/dev.174698 Download Original Video