In a small patch of Namibia's Erongo Mountains, a tiny succulent grows so convincingly disguised as a pebble that most people would walk straight past it without a second glance. This plant, Lithops werneri, survives by mimicking the grey, weathered stones scattered across the thin gravel where it grows, a camouflage strategy that has helped protect it from grazing animals for millions of years but has done little to shield it from human collectors and a changing climate.

In a small area of Namibia’s Erongo Mountains, a tiny, pebble-like plant grows on a very thin layer of gravel. This succulent, Lithops werneri, is found in just one tiny 4…

This ‘living stone plant in Namibia looks like a rock and plays dead to survive. Fewer than 200 remain as the rare species faces extinction. The rare pebble-sized plant, Lithops…