Bili Apes

Initially thought to be a new species of larger than normal chimpanzees, a chimpanzee-gorilla hybrid or the extinct Gorilla gorilla uellensis, the Bili apes have been since shown to be part of the central chimpanzee subspecies. Nevertheless, the Bili chimpanzees do habitually make ground nests unlike all other known chimpanzee populations, and their reputation as "lion-killers" have been partially substantiated.

Cleve Hicks has been studying the Bili apes and other chimpanzees of Northern Congo since 2004 and his annual reports can be found on the Wasmoeth wildlife website:
http://www.wasmoethwildlife.org/folder2007-2008/part1/

The narration of this video is in Dutch but the interview is in English.

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