What is unique about how a praying mantis hears is that the insect detects sounds through one single ear that is located deep within its chest cavity, rather than on its head like most other creatures.
The praying mantis is the only creature that is known to hear with one ear. It was once commonly accepted that praying mantises were deaf, but scientists discovered in the 1980s that not only can the insects hear, but they can detect sounds well beyond what humans are capable of hearing. They use their high-frequency hearing to scope out and protect themselves against predators, such as bats.
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