The semi-arid Kalahari Desert stretches over parts of Namibia, South Africa, and Botswana. It’s an ecological wonderland that isn’t like your average super dry desert. It gets a lot more rain, which ...

You might think of Australia's arid center as a dry desert landscape devoid of aquatic life. But it's actually dotted with thousands of rock holes—natural rainwater reservoirs that act as little oases ...