How are crickets so loud?
But Why: A Podcast for Curious Kids
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The Effects of Sound on Predators
There is evidence that some predators will also listen to that sound just like the females might and figure out where that cricket is and try to eat it. So it is a costly process actually producing any kind of mating signal. Other than mating they don't make any noises so you don't have crickets just calling to each other to say hey you want to hang out tonight or to say watch out there's a cat in the neighborhood.
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