History of Africa Other significant European explorers included Heinrich Barth, Henry Morton Stanley (coiner of the term "Dark Continent" for Africa in an 1878 book), Silva Porto, Alexandre de Serpa Pinto, Rene Caille, Friedrich Gerhard Rohlfs, Gustav Nachtigal, George Schweinfurth, and Joseph Thomson. The most famous of the explorers was David Livingstone, who explored southern Africa and traversed the continent from the Atlantic at Luanda to the Indian Ocean at Quelimane. European explorers made use of African guides and servants, and established long-distance trading routes were used. Missionaries attempting to spread Christianity also increased European knowledge of Africa. Between 1884 and 1885, European
Geography of the Comoros remains of which date as far back as 400 million years and which was once thought to have become extinct about 70 million years ago. A live specimen was caught in 1938 off southern Africa; other coelacanths have since been found in the vicinity of the Comoro Islands. Several mammals are unique to the islands themselves. Livingstone's fruit bat, although plentiful when discovered by explorer David Livingstone in 1863, has been reduced to a population of about 120, entirely on Anjouan. The world's largest bat, the jet-black Livingstone fruit bat has a wingspan of nearly two meters. A British preservation