Built to Survive

Desert life runs on tricks that look like cheating. The kangaroo rat never takes a drink. It pulls all the water it needs out of the dry seeds it eats, manufacturing moisture inside its own body as it digests them. The Welwitschia of the Namib takes the opposite approach to time: this strange two-leaved plant can live for over a thousand years, slowly sipping coastal fog while empires rise and fall around it.

The Namib beetle drinks the air. On foggy mornings it climbs a dune and tilts head-down into the breeze. Tiny droplets gather on the bumps of its hardened back, then trickle down grooves straight to its mouth. It is one of the few animals that turns a passing fog bank into a glass of water — and engineers now copy its shell to harvest water from mist.