The rock hyrax is found across Africa and the Middle East, in habitats with rock crevices in which to escape from predators. Hyraxes typically live in groups of 10–80 animals, and forage as a group. Their most striking behaviour is the use of sentries: one or more animals take up position on a vantage point and issue alarm calls on the approach of predators. Over most of its range, the rock hyrax is not endangered, and in some areas is considered a minor pest. In Ethiopia, Israel and Jordan.
Rock hyraxes are very noisy and sociable. Adults make use of at least 21 different vocal signals. The most familiar signal is a high trill, and is given in response to perceived danger. Rock hyrax calls are referred to as “songs.”The rock hyrax is squat and heavily built, Their fur is thick and grey-brown color, although this varies strongly between different environments; from dark brown in wetter habitats, to light gray in desert living individuals.
Prominent in and apparently unique to hyraxes is the dorsal gland, which excretes an odour used for social communication and territorial marking. The gland is most clearly visible in dominant males. References:- Wikipedia