The Afroasiatic languages spoken in Africa are not more closely related to each other than they are to Semitic, as one would expect if only Semitic had remained in an West Asian homeland while all other branches had spread from there.
ðɪ ˌæfɹoʊˌeɪsɪˈæɾɪk lˈæŋɡwɪdʒᵻz spˈoʊkən ɪn ˈæfɹɪkə ɑːɹ nˌɑːt mˈoːɹ klˈoʊsli ɹᵻlˈeɪɾᵻd tʊ ˈiːtʃ ˈʌðɚ ðɐn ðeɪ ɑːɹ tə sɛmˈɪɾɪk, æz wˈʌn wʊd ɛkspˈɛkt ɪf ˈoʊnli sɛmˈɪɾɪk hæd ɹᵻmˈeɪnd ɪn æn wˈɛst ˈeɪʒən hˈoʊmlənd wˌaɪl ˈɔːl ˈʌðɚ bɹˈæntʃᵻz hæd spɹˈɛd fɹʌm ðˈɛɹ.