translation.en: For example, we study hygiene, where some bees are able to locate and weed out sick individuals from the nest, from the colony, and it keeps the colony healthy.
translation.zh: 例如，我们研究卫生， 一些蜜蜂能够找到并驱赶 生病的个体，离开蜂巢，離開聚居地， 保持蜂巢的健康。