Ermine Moths' Ultrasonic Defense Mechanism Unveiled

New study discovers how earless moths produce ultrasonic signals to evade predators, offering potential engineering insights.

A new study reveals that ermine moths, despite lacking hearing organs, use a unique wing structure to produce ultrasonic signals that jam the echolocation of bats.
This discovery showcases a natural example of 'snap through,' a phenomenon engineers typically avoid due to its potential to cause structural instability.
The moths' aeroelastic tymbals, which generate the ultrasonic signals, could inspire innovations in engineering, particularly in acoustic structural monitoring and soft robotics.
Researchers utilized advanced techniques like 3D X-ray and confocal microscopy to understand the mechanics behind the moths' sound production.
The study represents a significant advancement in understanding the acoustic defenses of insects against predators and could lead to new technological developments.