Over a few thousand years, climate change drove many species from an abundant part of (Northern) Africa to the coastal and mountain edges, where some population persist, as most turned into the Sahara. It's actually mostly stone, yet the fifth sand causes almost instant apocalyptic dangers: sand storms which swallow whole caravans or even villages in no time. Specialist species adapt admirably to drought, spots where the vast water reserve emerges are bountiful oases.
—KGF Vissers