sentences:  The most common mammal on the mountain was the "dassie" (the South African name, from Afrikaans, pronounced "dussy"), or rock hyrax.Between about 2000 and 2004 (no one is certain about the exact year or years) their numbers suddenly plummeted for unknown reasons.They used to cluster around the restaurant at the upper cable station, near areas where tourists discarded or (inadvisably) supplied food.