“…In the hard palate, the epithelium is characterized with palatine ridges in mammal orders as Carnivore (Ari & Uslu, 2019), Artiodactyl (Mahdy, Abdalla, & Mohamed, 2018), Primate (Lima, Fioretto, Imbeloni, & Branco, 2012), and Rodent (Mustapha, Ayoade, Ogunbunmi, & Olude, 2015), although in the last one, this feature may be absent (Aro et al, 2019).…”