Create a realistic habitat hardscape for your tropical reptiles, amphibians, fishes, spiders, and other exotic pets. Your tropical pets will definitely favour this coconut shell cave hideout over artificial hideouts that carry with them unfamiliar smells. Encourage your pets' natural behaviours by providing them with a natural coconut hideout where they can be safe and cosy in. The Importance of Hideout Caves for Your Pets Even large animals has this instinct to hide from potential predators and other animals of their own species. Failure to fulfil this instinct will cause stress and exhaustion that will compromise their health in the long run.