2008年新托福口语考试全面辅导(六)

same topic. According to the professor, herd animals can be easily domesticated if they have a hierarchical social structure and are not territorial, and that this is why it is easier to domesticate horses than antelopes. Because horses’ hierarchical social structure makes them willing to follow one another and thus allows a human being to act as their leader. And horses are not territorial; they can be harnessed together without fighting. While antelopes are territorial, male antelopes fight if they are together, and that because antelopes do not have a social hierarchy, humans can’t control them by acting as their leader.

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