Jackal, duiker and rock hyrax are also resident. Mammal species include the Nubian ibex and the rock hyrax. Above the timberline, the Kilimanjaro tree hyrax, the grey duiker, and rodents are frequently encountered. There are also rock hyrax, hedgehogs, hares, shrews and bats. The tree hyrax or tree dassie is a small nocturnal mammal native to Africa. The southern tree hyrax is a herbivore. Populations of the bush hyrax are native to Africa. The southern tree hyrax has a guinea pig-like appearance. All four currently recognized species of hyrax have been hunted by crowned eagles. In the 2000s taxonomists reduced the number of recognized species of hyrax. Each of the three species of tree hyrax has a distinct territorial call. Locally, large numbers are taken of any species of hyrax. The rock hyrax has a pointed head, short neck, and rounded ears. It is an important predator of the rock hyrax. The rock hyrax spends approximately 95% of its time resting.