The Exo Terra Coconut Cave is the perfect nesting and egg-laying hide for your poison dart frogs and various other amphibians, reptiles and invertebrates. Its realistic look mimics a natural hiding place of reptiles and amphibians and will add a tropical touch to your terrarium set-up. In a constantly moist environment, its irregular surface will slowly start to overgrow with moss, adding to the natural look of the cave. Poison dart frogs are easily frightened creatures who hide rather quickly, at the slightest disturbance of their surroundings. Strangely enough, poison dart frogs will show up in the open much more if provided with ample secure hiding places, which will make them feel safe and secure knowing their comfort zone is within immediate reach.