Insects constitute but a small portion of the food of many fish.

Fine vegetable matter, like slender mosses, growing on the bottom, is devoured greedily; and as the fishes are dislodged from the main stream by the force of the current, and find abundant pasture on the flooded plains, the whole community becomes disturbed and wanders.
The mosala ('Clarias Capensis' and 'Glanis siluris'), the mullet ('Mugil Africanus'), and other fishes, spread over the Barotse valley in such numbers that when the waters retire all the people are employed in cutting them up and drying them in the sun.

The supply exceeds the demand, and the land in numerous places is said to emit a most offensive smell.

Wherever you see the Zambesi in the centre of the country, it is remarkable for the abundance of animal life in and upon its waters, and on the adjacent banks.
We passed great numbers of hippopotami.

They are very numerous in the parts of the river where they are never hunted.