Rock Hyrax is a type of Friend who makes a cameo appearance in the anime.
Rock Hyrax has brown eyes, short gray hair that fades to black in her middlemost bang, and to a lighter gray color towards the tips. She has two round gray animal ears and an animal tail that can be seen behind her. She wears a white long sleeved undershirt with a black ribbon, a gray large shirt with a large white spot in the front and a pair of black gloves. She wears white loose socks, and black shoes.
In Real Life
Rock Hyraxes can be found throughout most of Africa and the Arabian Peninsula, living in arid land habitat including deserts, savannas and scrub forests. These hyraxes are heavily built for their size, with a weight of about 4 kg and a length that ranges from 305 to 550 mm. Their hair color variates between gray, yellow-brown and dark brown. They posses a single pair of long, tusk-like incisors, and the soles of their feet are moistened so they can gain extra traction on smooth surfaces.
Hyraxes have a variety of vocal calls, they live in colonies in "kopjes," or rock outcropping, and cliffs. These colonies with as many as 80 individuals. In the wild, rock hyraxes feed mainly on vegetation and are grazers and browsers, they can also eat plants that are poisonous to most other animals.
Despite being basically endothermic, rock hyraxes have a widely fluctuating body temperature and cannot exist without shelter from temperature extremes. Rain is also avoided, and hyraxes may not leave their dens at all during cold, rainy days.
Linderman, E. 2011. "Procavia capensis" (On-line), Animal Diversity Web. Accessed July 04, 2017 at http://animaldiversity.org/accounts/Procavia_capensis/