Cork pieces in terrariums serve as versatile elements, providing both functional and aesthetic benefits. These natural pieces create textured landscapes, mimicking natural environments for reptiles or amphibians. Additional to aesthetic appeal, cork provides climbing surfaces and hides for animals, promoting physical activity and stress reduction, it retains moisture, aiding in humidity regulation.   
Cork provides great coverage for burrow entrance hides for species such as Tarantulas, scorpions and some snakes.
As a sustainable and natural material, cork is a popular choice for eco-conscious pet owners. Overall, incorporating cork in terrariums enhances the habitat's realism and supports the well-being of the inhabitants.