sum s ▁do ▁not ▁possess ▁a ▁p ouch ▁to ▁protect ▁the ▁young ▁as ▁they ▁develop . ▁The ▁young ▁are ▁so ▁und e velop ed ▁their ▁eyes ▁do ▁not ▁open ▁until ▁ 3 9 ▁to ▁ 4 0 ▁days . ▁It ▁is ▁likely ▁that ▁the ▁young ▁are ▁completely ▁we an ed ▁after ▁around ▁ 6 5 ▁days , ▁and ▁they ▁may ▁have ▁an ▁incred ibly ▁short ▁life ▁span ▁of ▁only ▁one ▁year . ▁Mar m osa ▁species ▁build ▁n ests ▁for ▁shelter , ▁or ▁use ▁abandoned ▁bird ▁n ests , ▁holes ▁in ▁trees , ▁or ▁ban ana ▁stal ks . ▁These ▁nest ▁sites ▁are ▁unlikely ▁to ▁be ▁permanent ; ▁rather , ▁the ▁op os sum ▁will ▁use ▁whatever ▁site ▁is ▁available ▁as ▁the ▁sun ▁begins ▁to ▁rise . ▁M . ▁ro bin son i , ▁is ▁insect iv orous , ▁with ▁fruit ▁also ▁playing ▁an ▁important ▁role ▁in ▁the ▁di et . ▁ ▁Conserv ation ▁ ▁There ▁are ▁no ▁current ▁thre ats ▁to ▁this ▁species , ▁except ▁for ▁the ▁reduction ▁of ▁its ▁habitat ▁from ▁def or est ation ▁or ▁resource ▁obtain ment . ▁ ▁References ▁ ▁Category : O pos sum s ▁Category : M amm als ▁of ▁Colombia ▁Category : M amm als ▁described ▁in ▁ 1 8 9 8 ▁Category : T ax onomy ▁articles ▁created ▁by ▁Pol bot <0x0A> </s> ▁C ane ▁Creek ▁C asc ades ▁is ▁a ▁ ▁cas cade ▁located ▁along ▁C ane ▁Creek , ▁just ▁above ▁C ane ▁Creek ▁F alls . ▁ ▁The ▁falls ▁are ▁located ▁near