Why do leopard geckos exhibit digging behavior in their natural habitat and how can I provide a suitable environment for them to engage in this behavior in captivity?

Leopard geckos exhibit digging behavior in their natural habitat to create burrows for shelter and to regulate their body temperature. In captivity, you can provide a suitable environment for them to engage in this behavior by offering a substrate that allows for digging, such as coconut fiber or sand, and providing hiding spots and structures for them to burrow under.