One of the unusual features of a map of african languages is the: significant numbers of hebrew speakers in gabon existence of a language in madagascar belonging to the indonesian subfamily very small number of african languages, despite ethnic differences inroads that spanish has made in becoming the language of trade in africa

One of the unusual features of a map of African languages is the existence of a language in Madagascar belonging to the Indonesian subfamily.
Madagascar is an island that belongs to Africa, yet there is an Indonesian language spoken there, which is not accounted for. It is rather odd that this should happen, which is why African languages in this part of the world are unusual.