English pilgrims Richard Burton and John Speke found Lake Tanganyika as the wellspring of the waterway Nile in mid-1800s. What they'd thought as the Nile was discovered to be really Ruzizi River. Lake Tanganyika has a separation of 677 km (420 mi) and has a width of around 50 km (31 mi). It's known not the second most profound lake after Lake Baikal at a profundity of 1433 m (4700 ft), which is 642 beneath ocean level. 350 types of fish, which most are endemic, can be found in Lake Tanganyika. The maturity and confinement prompted the development of fish species and this happens to keep on forming new disclosures .