The alligator snapping turtle is a big aquatic species having a noticeably significant head (as compared to other species of turtles). The carapace (upper shell) has three distinguished ridges — one together the middle line and one on either aspect. There may be an extra row of scutes (sexy scales) https://damienrpjgv.tusblogos.com/26854277/an-unbiased-view-of-alligator-snapping-turtle