At nightfall, a Tepui Tree Frog (Tepuihyla obscura) emerges from the folds of a carnivorous bromeliad (Brocchinia reducta) in which it has sheltered for the day. Although receiving rain almost daily, the summits of Venezuela’s tepui mountains are exposed to volatile weather patterns, with mist often giving way to brutally intense sunlight over a span of a few minutes. A lack of shade-providing trees means that there is little to protect delicate animals such as amphibians, hence these water-filled bromeliads provide an ideal refuge from the harsh climate fluctuations. The slippery wax-coated leaves, which are designed to trap insects, are no hindrance to the frogs. Canaima National Park, Venezuela.