Water is a luxury across the ostrich’s native scrubland. Flocks will drink readily when arriving at open water holes, consuming up to 10 liters in a single session. Yet radio-collared individuals tracked across the Namib Desert frequently survive months without drinking standing water.
They survive through metabolic moisture extraction and deliberate plant selection. Foraging peaks during the cooler hours of dawn and dusk, when dew condensation coats succulent shrubs. Wild tsama melons (Citrullus lanatus) serve as vital water reservoirs across the Kalahari. In prolonged droughts, ostriches concentrate their urine into viscous paste, drastically cutting renal moisture loss and ensuring metabolic water from digested fats stays in the bloodstream.
