Lake Tanganyika has a unique biological habitat, with almost 90% of the species occurring there found nowhere else on Earth. Almost 1/6th of the entire available surface freshwater in the world is found in this amazing body of water. Unfortunately, like so many other rare and sensitive environments, the effects of overfishing, global warming and bad practices have placed Lake Tanganyika and its surrounds under threat.
It is fed by the Rusizi River in Burundi to the north and the Malagarasi River in Tanzania to the east. Due to its great depth, the lake only drains during periods of high rainfall, making it more of an inland sea than a lake. Its drainage system is complex, with its waters eventually flowing into the Atlantic Ocean.