They found that the hyraxes sampled from between the Volta River in eastern Ghana and the Niger River in western Nigeria had differently shaped snouts and inner nostrils from the species of hyraxes to their east and west.

他们发现，从加纳东部的沃尔特河和尼日利亚西部的尼日尔河之间采集的非洲蹄兔的鼻子和内鼻孔的形状与其东部和西部的非洲蹄兔不同。