ĭogs and cats' hearing range extends into the ultrasound the top end of a dog's hearing range is about 45 kHz, while a cat's is 64 kHz. Tiger moths also emit clicks which may disturb bats' echolocation, and in other cases may advertise the fact that they are poisonous by emitting sound. Ultrasonic frequencies trigger a reflex action in the noctuid moth that causes it to drop slightly in its flight to evade attack. Upon hearing a bat, some insects will make evasive manoeuvres to escape being caught.
These include many groups of moths, beetles, praying mantids and lacewings. Many insects have good ultrasonic hearing, and most of these are nocturnal insects listening for echolocating bats. They can detect frequencies beyond 100 kHz, possibly up to 200 kHz. A dog whistle, a whistle which emits sound in the ultrasonic range, used to train dogs and other animalsīats use a variety of ultrasonic ranging ( echolocation) techniques to detect their prey.
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