Geography of Africa in the lake of organisms of a decidedly marine type. They include jellyfish, molluscs, prawns, crabs, etc. With the exception of Madagascar, the African islands are small. Madagascar, with an area of , is, after Greenland, New Guinea and Borneo, the fourth largest island on the Earth. It lies in the Indian Ocean, off the S.E. coast of the continent, from which it is separated by the deep Mozambique channel, wide at its narrowest point. Madagascar in its general structure, as in flora and fauna, forms a connecting link between Africa and southern Asia. East of Madagascar are the small
Attu Island the largest possible number of bird species within a specific geographic area during a specific time period. Because it is so physically remote from other parts of North America, there are a number of bird species likely to be found on Attu that are not seen anywhere else on the continent. John Fitchen called the island, "the Holy Grail of North American birding". During his record-setting big year of 1998, in which he identified a record 745 species (later revised to 748), Sandy Komito spent 29 days (May 10-June 7) on the island. Since the closure of Attu Station by