Length measurements (cm) of 16 pelagic thresher sharks, as determined from video records of overhead tail-slap hunting events (June – October 2010).

Lengths were calculated from video images by counting the number of times a referenced sardine could fit lengthwise into the selected length measurements of a thresher shark. Precaudal (PCL), dorsal caudal fin margin (CDM), fork (FL) and total (TL) lengths are presented±their standard deviations. The six sagittal plane events, which were selected for kinematic analysis, are in italics.