Why is regular surface water intake non-negotiable for the massive White Rhinoceros?

Answer

Dehydration quickly incapacitates such a large mammal as they cannot survive on food moisture alone

Despite their size, White Rhinos have a high metabolic demand for water, especially given the dry periods often experienced on the plains. Unlike some highly adapted ungulates that can derive sufficient moisture solely from the plants they consume, these large herbivores require regular access to external water sources, often needing to drink daily. Failure to do so leads to rapid incapacitation due to dehydration, making reliable water availability a primary factor in their habitat selection.

Why is regular surface water intake non-negotiable for the massive White Rhinoceros?
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