According to Hodgson et al. (2014), both the African ancestry (Ethiopic) and the non-African ancestry (Ethio-Somali) in Cushitic speaking populations is significantly differentiated from all neighboring African and non-African ancestries in East Africa, North Africa, the Levant and Arabia. The genetic ancestry of Cushitic and Semitic speaking populations in the Horn of Africa represents ancestries (Ethiopic and Ethio-Somali) not found outside of Cushitic and Semitic speaking HOA populations in any significance. Therefore, both ancestries are distinct, unique to, and considered the signature autosomal genetic ancestry of Cushitic and Semitic speaking HOA populations.