The information conveyed by the olfactory signals on a buck rub make it the social equivalent of some auditory signals in other deer species, such as trumpeting by bull elk.
雄鹿的摩擦印记发出的嗅觉信号所传递的信息，使其与某些其他鹿类的听觉信号，比如公麋鹿的号角声，产生了相同的社会效果。
A vivid case in point is the prodigious antlers of the bull elk.
一个鲜明的例子就是公麋鹿的角的进化。
A harvested bull elk and its prized antlers are transported the old-fashioned way-by mule.
一头被猎取的公鹿的侧肋以及价值高昂的鹿角正用传统方式进行运输——用骡子驮。
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