然后在回到群居地后，父母会通过声音识别找到自己的幼鸟。

Then, back at the rookery, the parent finds its own chick by voice recognition.

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他们认为有可能一个蝙蝠群体是怎样群居地结合在一起和这个群体帐篷的本质之间有关系。

They thought that there might be a link between how socially integrated a bat colony is and the nature of its tents.

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几个月后，那放走的五只企鹅中，有三只回到了它们最初被带走的地方——威尔克岛群居地。

Ten months later, three of the five returned to the Wilkes Land colonies from which they had been taken.

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