Burrowing frogs are specialised for a subterranean lifestyle and can stay underground for extended periods of time. They have several adaptations that allow them to do this, including thin, papery skin that doesn’t dry out easily, strong hind legs for digging, and small eyes and nostrils near the top of their head so they can breathe while buried. Some species of burrowing frog can stay underground for months or even years at a time!