An overnight pit stop in Joshua Tree National Park—a tent utopia as it goes—saw us once again ensconced in its ecological melting pot, lined by a jumble of stacked boulders and walls of imposing granite. The convergence of two great deserts: the Mojave and Colorado, blended together in a barbed landscape adorned in Sonoran flora and fauna. Such marvels of dry arid regions simply keep going about their business, adapting to relentless sun, little water and temperatures from below freezing to above 100 degrees Fahrenheit.