The Ebo forest is one of the largest remaining intact forest tracts in the Gulf of Guinea Biodiversity Hotspot (Morgan et al. 2011) and it is in the process of being upgraded into a national park by the government of Cameroon. The forest is home to a unique primate assemblage including a small population of gorillas, one of the largest populations of Nigeria-Cameroon chimpanzees and drills, as well as one of only two remaining populations of Preuss's red colobus (Morgan 2010).

After the first observation of gorillas by a group of scientists in 2002 in the Ebo forest (Morgan et al. 2003), San Diego Zoo Global initiated a biodiversity research and conservation outreach program in the area...