Answer:
'They are reduced to this diet because in all this country and in all the surrounding regions there is no grass but it is the driest place in the world.'
Explanation:
The author includes this information because it gives an explanation on why the animals eat fish and not grass. They eat fish because the land is too dry to grow grass, therefore they eat the fish from the water.
<em>Original Question: Why does the author include information about the dry climate?</em>
unreasonable is opposite in meaning to practical.
