Geology PalaeontologyMassive geographic change may have triggered explosion of animal lifeHERITAGEDAILYNovember 3, 2014December 27, 2015 by HERITAGEDAILYNovember 3, 2014December 27, 20151259 New analysis of geologic history can potentially solve the riddle of the ‘Cambrian explosion’.