Horn of Africa periodic monsoon winds and irregular rainfall. Mean daily maximum temperatures range from , except at higher elevations along the eastern seaboard, where the effects of a cold offshore current can be felt. Somalia has only two permanent rivers, the Jubba and the Shabele, both of which begin in the Ethiopian Highlands. About 220 mammals are found in the Horn of Africa. Among threatened species of the region, there are several antelopes such as the beira, the dibatag, the silver dikdik and the Speke's gazelle. Other remarkable species include the Somali wild ass, the desert warthog, the hamadryas baboon, the Somali
Horn of Africa as የአፍሪካ ቀንድ yäafrika qänd in Amharic, القرن الأفريقي‎ al-qarn al-'afrīqī in Arabic, Gaaffaa Afriikaa in Oromo and ቀርኒ ኣፍሪቃ in Tigrinya. The Horn of Africa is sometimes shortened to "HOA". The Horn of Africa is quite commonly designated simply the "Horn", while inhabitants are sometimes colloquially referred to as "Horn Africans". Sometimes the term "Greater Horn of Africa" is used, either to be inclusive of neighbouring northeast African countries, or to distinguish the broader geopolitical definition of the Horn of Africa from narrower peninsular definitions. Ancient Greeks and Romans referred to the Somali peninsula as Regio Aromatica or Regio