Horn of Africa Horn of Africa The Horn of Africa (, , , , ) (shortened to HOA; alternatively Somali Peninsula) is a peninsula in Northeast Africa. It juts hundreds of kilometers into the Arabian Sea and lies along the southern side of the Gulf of Aden. The area is the easternmost projection of the African continent. Referred to in ancient and medieval times as "Land of the Berbers" and "Habesha", the Horn of Africa denotes the region containing the countries of Djibouti, Eritrea, Ethiopia, and Somalia. It covers approximately 2,000,000 km (770,000 sq mi) and is inhabited by roughly 115 million people
Horn (anatomy) with true horns use them for cooling. The blood vessels in the bony core allow the horns to function as a radiator. After the death of a horned animal, the keratin may be consumed by the larvae of the Horn Moth. Horn (anatomy) A horn is a permanent pointed projection on the head of various animals consisting of a covering of keratin and other proteins surrounding a core of live bone. Horns are distinct from antlers, which are not permanent. In mammals, true horns are found mainly among the ruminant artiodactyls, in the families Antilocapridae (pronghorn) and Bovidae (cattle, goats,