African manatee in both coastal areas and isolated inland areas, genetic evidence suggests no significant differences between the two populations. The African manatee falls under the genus "Trichechus" with only two other species, the Amazonian manatee and the West Indian manatee, which are also sirenians. African manatees can be found in West African regions: Angola, Benin, Cameroon, Chad, the Republic of the Congo, the Democratic Republic of the Congo, Côte d'Ivoire, Equatorial Guinea, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, and Togo. Manatees are found in brackish waters to freshwater: in oceans, rivers, lakes, coastal
Ghana Empire sceptical of Conrad and Fisher's arguments and suggested that there was reasons to believe that there was conflict between the Almoravids and the empire of Ghana. Furthermore, the archaeology of ancient Ghana simply does not show the signs of rapid change and destruction that would be associated with any Almoravid-era military conquests. While there is no clear-cut account of a sack of Ghana in the contemporary sources, the country certainly did convert to Islam, for al-Idrisi, whose account was written in 1154, has the country fully Muslim by that date. Ibn Khaldun, a fourteenth-century North African historian who read and