uses ▁primarily ▁use ▁their ▁t ails ▁for ▁grasp ing . ▁They ▁are ▁n aked ▁at ▁the ▁tip , ▁and ▁the ▁unders ide ▁of ▁the ▁t ails ▁are ▁stre aked ▁with ▁call uses ▁for ▁ease ▁of ▁pick ing ▁up ▁items ▁such ▁as ▁food . ▁ ▁Be havior ▁Sp il ocus cus ▁r uf on iger ▁are ▁end oth erm s . ▁The ▁black - sp otted ▁c usc uses ▁are ▁primarily ▁ar b ore al ; ▁they ▁only ▁descend ▁to ▁the ▁ground ▁period ically . ▁Being ▁no ct urn al ▁cre atures , ▁they ▁rest ▁in ▁a ▁cur led ▁position ▁on ▁high ▁branches ▁throughout ▁the ▁day . ▁Natur ally , ▁they ▁are ▁sl ugg ish ▁cre atures ▁with ▁pre domin antly ▁solit ary ▁l ifest yles . ▁Fe eding ▁and ▁nest ing ▁is ▁performed ▁individually . ▁Inter actions ▁and ▁enc oun ters ▁between ▁individuals ▁of ▁this ▁species ▁typically ▁involve ▁ag gression . ▁There ▁have ▁been ▁no ▁reports ▁of ▁ar b ore al ▁pred ators ▁in ▁the ▁habit ats ▁of ▁the ▁black - sp otted ▁c us cus . ▁ ▁Re production ▁Little ▁is ▁known ▁regarding ▁the ▁m ating ▁behavior ▁of ▁black - sp otted ▁c usc uses . ▁ ▁Cour ting ▁is ▁typically ▁performed ▁on ▁tree ▁lim bs . ▁Black - sp otted ▁c usc uses ▁produce ▁off spring ▁via ▁sexual ▁reprodu ction . ▁They ▁are ▁viv ip ar ous , ▁with ▁the ▁mother ▁bir thing ▁live ▁young . ▁ ▁Par ental ▁care ▁The ▁mother ▁poss esses ▁a ▁p ouch ▁that ▁functions ▁in ▁n