高速相机的出现正在使科学家可以第一次看到这些袋状物捕猎功能。


These flowers look inviting but they are disguising a very aggressive plant.

Hints:
Bladderwort
Utricularia
snapdragon

选材／校对／翻译：hqj5715
You won't see bladderworts as movie stars anytime soon, but these carnivorous plants could put any monster to shame with their sinister traps. Bladderworts of the genus Utricularia are beautiful at first glance, with flowers resembling snapdragons or orchids. But below their attractive surface lies their sinister nature. They can capture prey in the blink of an eye. Most bladderworts thrive in marshy, low nutrient soils. Stolons, or branching stems, extend into the waterlogged environment. They may resemble roots, but they are much more than that. The stolons are dotted with bag like traps ranging in size from 1/100 inch to 1/2 inch, depending on the species. These bladders are set with hair triggers ready to suck in anything from microscopic creatures to larger prey like mosquito larvae, tadpoles and small fish. Scientists have long marveled at the bladders' technology, but the traps worked so quickly, it was difficult to tell exactly how they worked. Now high speed cameras are giving scientists their first look at how the bladder traps function. They are first pumped nearly dry, creating a pressure difference between the trap's inside and the water outside. When an unsuspecting victim brushes against a series of hairs along the trap door– Bam!…The door bursts open and sucks everything inside. The traps use a unique elastic buckle.
最近的任何时候你们都不会看到狸藻类的植物像电影明星一样，但是这些食肉类植物可以用他们邪恶的围困使任何的怪物感到羞愧。 属于狸藻种数的狸藻类植物第一眼看上去非常的漂亮，他们的花和金鱼花或者兰花相似。但是在他们富有吸引力的外表现隐藏着他们邪恶的本质。他们可以在一眨眼间捕捉到猎物。 大部分的狸藻类植物生长于沼泽、低营养的环境下。其匍匐枝或者称分支主干延伸入充满水的环境中。他们与根相似，但是比根要多的多。这些匍匐枝由范围从1/100到1/2寸的类似捕捉器的袋状物点缀，袋状物的大小由其种类决定。 这些囊状物随时由发状触发装置触发，可以吸进从从微小生物到较大的猎物，例如蚊幼虫、蝌蚪、小鱼在内的任何生物。 科学家一直以后都惊叹于袋状物的这种技能，但是这些捕捉器动作非常迅速，想清楚的讲述其是怎样工作是非常难的。 现在高速相机的出现正在使科学家可以第一次看到这些袋状物捕猎功能。他们首先排空袋内水分接近干燥，产生一个不同于捕捉器内及外部水份得压力。 当一个肯定的牺牲者擦过沿着捕捉器门而存在的一系列发丝时--砰。门突然打开并把所有的一切吸入袋状物内。捕捉器使用一种罕见的具有弹性的扣子。