科学家早就知道,某些昆虫可以摒住呼吸几个小时或几天。但是他们为什么要这样做呢?最新的研究表明,吸入太多的空气会置它们于死地。昆虫通过分布于体表的被称为通气孔的小洞呼吸。有些昆虫时不时会将这些通气孔关闭住。科学家过去认为,这样做是为了停止呼吸以避免水分流失,或者 Scientists have long known that some insects can hold their breath for hours or days. But why did they do this? The latest research shows that inhaling too much air will put them to death. Insects breathe through small holes called vents that are distributed on the surface of the body. Some insects close these vents from time to time. Scientists used to think that this is done to stop breathing to avoid loss of water, or