But the visas mantis program already existed by then .

但是“螳螂签证”在此之前就已存在了。

In some species , such as the chinese praying mantis , the courtship ritual is elaborate .

有些种类的螳螂，其求爱方式很是别出心裁的，比如中国螳螂。

Different species of praying mantis can be mistaken for leaves , sticks or even flowers .

不同类型的螳螂看去可能会像一片树叶、一根树枝，甚至是一朵花。

A mantis hangs upside down from a bird feeder , eating a dead hummingbird .

一只螳螂头朝下地挂在一个野鸟喂食器上嘴里叨着一只已死的蜂鸟。

The life cycle of the praying mantis is short : only about a year in the wild and a little longer in captivity .

螳螂的一生是短暂的：野生的只有一年多寿命，人工饲养的会稍长一点。