To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4 Live imaging of cortical reaction in ovulated oocytes (IVO). Confocal time lapse of IVO oocytes incubated with SrCl2 and LCA-FITC. Arrowheads indicate responding cells. Live imaging of cortical granule exocytosis reveals that in vitro matured mouse oocytes are not fully competent to secrete their content Andrea I. Cappa, Matilde de Paola, Paula Wetten, Gerardo A. De Blas, and Marcela A. Michaut Biology Open 2018. 7:None-None; doi: 10.1242/bio.031872 Download Original Video