KAFUE, Zambia — “Three cattle on the left, 20 elephants on the right,” shouts the expedition leader from the bow seat of the first of five canoes snaking along a stretch of the Kafue River in central Zambia. The cattle are grazing near one of the many small farms and settlements that dot the river’s … Continue reading From cattle to crayfish, human pressures mount on Zambia’s Kafue River