To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Tracked Piglet Movie Progressive tracking: a novel procedure to facilitate manual digitization of videos Maja Mielke, Peter Aerts, Chris Van Ginneken, Sam Van Wassenbergh, and Falk Mielke Biology Open 2020. 9:None-None; doi: 10.1242/bio.055962 Download Original Video