When some plants are dehydrated or under stress, they emit ultrasonic clicks that certain moths can hear, potentially influencing their egg-laying decisions.
Insects are really listening to that. They're tuned to that specific sound, and they know the meaning, and they consider it.
This discovery lit a spark for Dr. Seltzer and her team: What if some insects actually interpret those sounds and use them to make decisions?
The researchers wanted to know whether female leafworms would use the clicks to decide where to lay eggs, one of the most important choices in their lives.
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