What African country is sometimes referred to as the "Dead Heart of Africa"?

Chad, officially known as the Republic of Chad, is a landlocked country in north-central Africa. Chad has several regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanian Savanna zone in the south. Lake Chad, after which the country is named, is the largest wetland in Chad and the second-largest in Africa.

Chad is bounded to the north by Libya, to the east by Sudan, to the west by Niger, Nigeria and Cameroon, and to the south by the Central African Republic. The country's capital is 1,060 kilometres (660 mi) from the nearest seaport, Douala, Cameroon. Because of this distance from the sea and the country's largely desert climate, Chad is sometimes referred to as the "Dead Heart of Africa".

The region's tall grasses and extensive marshes make it favourable for birds, reptiles, and large mammals. Chad's major rivers—the Chari, Logone and their tributaries—flow through the southern savannas from the southeast into Lake Chad.