Beneath is a cladogram exhibiting the associations of the major extant crocodile teams determined by molecular scientific studies, excluding separate extinct taxa: Crocodilia They don't seem to be exhibiting aggression once you see them with their mouths large open! They typically slumber with their mouths extensive open to launch heat. https://crocodiles74184.blogolize.com/not-known-factual-statements-about-crocodiles-73620614