About Lake Tanganyika: Lake Tanganyika stretches along the floor of the East African Rift, bordered by four different countries. Its isolated waters have produced hundreds of unique fish species that evolved nowhere else on Earth. A Living Laboratory of Evolution — Its isolated fish species helped scientists understand evolution.

Location: East Africa, in the Great Rift Valley · Max Depth: 1,470 m (4,823 ft) The second-deepest lake on Earth. · Area: 32,900 km² (12,700 mi²) The longest freshwater lake in the world. · Formation: The East African Rift widening apart · Countries: Tanzania, DR Congo, Burundi & Zambia Shared among four different nations. · Wildlife: Hundreds of unique cichlid fish species · Freshwater Held: About 16% of Earth's unfrozen fresh water · Notable Feature: The second-oldest lake on Earth Formed roughly 9 to 12 million years ago. · World Rank: 2nd-deepest lake on Earth Ranks just behind Lake Baikal in depth.