Africa: Hordes of Yabbies Are Trashing Rivers in Africa. How Did This Happen?
Every year, the upper Zambesi River breaks its banks and spreads across the wide Barotse floodplains in Zambia. These seasonal wetlands are famed for their exceptional richness of species, from birds to unique cichlid fish. But there are signs of profound upheaval. Native fish and invertebrate populations have fallen, river plants are being devoured and…