In a land as parched as Kenya's Tsavo West National Park, no visitor arrives with more fanfare than the water man.
That would be Patrick Kilonzo Mwalua. And when he rumbles down the dusty road bearing some 3,000 gallons of fresh water, the elephants, buffalo, antelope and zebras come running.
They've come to know the water man by the rumble of his engine. And his lifesaving cargo.
"There is completely no water, so the animals are depending on humans," Mwalua tells The Dodo. "If we don't help them, they will die."