Africa is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people (as of 2009) in 61 territories, it accounts for about 14.72% of the world's human population.
The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sianai Peninsula to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. The continent has 54 sovereign states, including Madagascar, various island groups, and the Sahrawi Arab Democratic Republic, a member state of the African Union whose statehood is disputed by Morocco.
Africa, particularly central eastern Africa, is widely regarded within the scientific community to be the origin of humans and the Hominidae clade (great apes), as evidenced by the discovery of the earliest hominids and their ancestors, as well as later ones that have been dated to around seven million years ago – including Sahelanthropus tchadensis, Australopithecus africanus, A. afarensis, Home erectus, H. habilis and H. erhaster – with the earliest Homo spiens (modern human) found in Ethiopia being dated to circa 200,000 years ago.
Africa straddles the equator and encompasses numerous climate areas; it is the only continent to stretch from the northern temperate to southern temperate zones. The African expected economic growth rate is at about 5.0% for 2010 and 5.5% in 2011.
Even though Africa is the poor part of this world every contry more less has its own zoos, some of them - like the new zoo in morocco and south africa are like the zoos of Europe, USA, Canada and some Asian zoos. Poorer countrys like Madagascars national zoo in Antanarivo is sponsored by wealthyer zoos in the west, but most are in a poor condition. I have heared storrys about Lions behinde a fence, where you easely could go in to them (and they out to you). Most african zoos especially show local animals, like lions, antilopes, hippos etc - wich infact is a good idear, since many kids in the western world know typical zooanimals, but don't know the beast in the backyard.
Out of the 19 Aquarias and Zoos only 7 have 200 species ore more , and thereby being a big institution. All of these are in South Africa, the biggest Aquarium is in East London and the biggest Zoo is in Pretoria.