“…These authors have described a preference on tree bearing chimpanzees nests that can be explained by several essential and extrinsic parameters (age of the individual, sex, social position, physiological state, habitat type, vegetation, climate, presence or absence of predators, etc.) (Baldwin, 1979;Baldwin et al, 1982;Groves and Sabater, 1985;Sept et al, 1992;Lehman and Fleagle, 2006;Pruetz et al, 2008;Kamilar, 2009;Badji et al, 2018;Badji, 2019;Diallo et al, 2022). In the present study, this choice would seem to be related to the abundance and physical properties of the support species because we found that the majority of plant species involved in nest construction are known for the hardness of their wood (Ndiaye et al, 2013).…”