Two further key aspects of prosociality as a sexual signal are explored here. First, the context in which it is used (in particular, relationship length) and, second, the different types of prosocial behaviors that exist in social interactions. Therefore, this commentary can show why prosocial behaviors are biased toward physically attractive individuals, as they can gain valuable information from them.

中文翻译：

---

行为类型和关系长度在外貌吸引力个体亲社会性择偶中的作用

这里探讨了作为性信号的亲社会性的另外两个关键方面。首先，使用它的环境（特别是关系长度），其次，社会互动中存在的不同类型的亲社会行为。因此，这篇评论可以说明为什么亲社会行为偏向于外表有吸引力的人，因为他们可以从他们那里获得有价值的信息。