蚁巢

"A forager won´t come back until it finds something, " Gordon says .

“一只觅食蚁在发现食物之前是不会返回蚁巢的”，戈尔顿博士讲道。

As it happens, in the wider world, there are other ant nests.

碰巧， 从全球范围看， 还有其它蚁巢。

This nest is called the mixed nests is indeed heterogeneous commensalism.

这种蚁巢叫做混合性蚁巢，实为异种共栖。

How they find their way home once they have done so is a mystery.

它们找完食物后如何返回蚁巢却一直是个谜。

Before they leave the nest each day, foragers normally wait for early morning patrollers to return.

在外勤觅食工离开蚁巢之前，它们通常会等零时的巡逻工回来之后才出去。