The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

耳朵只有一条裂缝，对于蝠发出超声波非常敏感。

Filling a niche separate from its green cousins, Deroplatys trigonodera, a leaf-litter mantid, has evolved the look of a leaf decomposing on the tropical forest floor.

作为绿色Deroplatystrigonodera近亲，这只枯叶已经融入了周围环境。这种外表，已经进化得就像落在热带森林地表之上腐叶。