Which of these animals has only one ear? mole lemur praying mantis snail

The animal with only one ear is PRAYING MANTIS.

Explanation:

The praying mantis belongs the class insecta. Its body parts is divided into head, thorax, abdomen, legs and antennae. A praying mantis also has one ear, which is located on the center part of its chest. With the help of this one ear, the praying mantis is capable of hearing ultrasonic sounds that are above 20,000 Hertz.  

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