0 0 ▁reported ▁glass ▁fro gs ▁throughout ▁Central ▁and ▁South ▁America . ▁ 1 3 ▁species ▁can ▁be ▁found ▁in ▁Costa ▁Rica . ▁Ad ult s ▁tend ▁to ▁be ▁more ▁active ▁during ▁the ▁night ▁when ▁there ▁is ▁rain ▁to ▁keep ▁their ▁skin ▁mo ist ▁and ▁from ▁dry ing ▁out . ▁However , ▁strong ▁ra ins ▁can ▁kill ▁them ▁because ▁their ▁bodies ▁are ▁so ▁frag ile . ▁A ▁simple ▁direct ▁shot ▁from ▁a ▁ra ind rop ▁has ▁been ▁known ▁to ▁kill ▁a ▁glass ▁f rog . ▁ ▁Hab itat ▁Fle isch mann ' s ▁G lass ▁Fro gs ▁live ▁near ▁fast ▁streams . ▁In ▁Costa ▁Rica , ▁these ▁fro gs ▁live ▁in ▁low land ▁wet ▁for ests , ▁rain ▁for ests , ▁and ▁even ▁in ▁higher ▁elev ations . ▁They ▁do ▁not ▁like ▁dry ▁areas ▁such ▁as ▁the ▁north western ▁low lands , ▁high ▁mountains , ▁or ▁coast s . ▁Of ▁all ▁the ▁glass ▁fro gs ▁in ▁Costa ▁Rica , ▁Fle isch mann ' s ▁glass ▁fro gs ▁are ▁the ▁most ▁popul ous . ▁The ▁glass ▁fro gs ▁are ▁also ▁ar b ore al , ▁which ▁means ▁they ▁res ide ▁in ▁trees . ▁These ▁fro gs ▁tend ▁to ▁lay ▁their ▁eggs ▁on ▁lower ▁branches , ▁the ▁bottom ▁of ▁leaves ▁and ▁near ▁flow ing ▁water . ▁About ▁ 1 8 – 3 0 ▁eggs ▁could ▁be ▁laid , ▁and ▁the ▁male ▁f rog ▁would ▁stand ▁guard ▁over ▁the ▁eggs ▁to ▁protect ▁them ▁from ▁pred ators ▁until ▁they ▁h atch , ▁and ▁the ▁t ad pol