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Evolving Ears: A Bug’s Guide

A katydid, proudly displaying the front legs in which it houses its ears (Image Credit: Charlie Woodrow, CC BY 2.0)

Insects are famously one of the most diverse groups of organisms, with over one million species discovered, adapted to nearly every niche on the planet. This diversity has allowed  for the evolution of an incredible mix of shapes and sizes, behaviours, and other features. Perhaps the most frequently re-occurring of these traits are their ears, with current estimates stating they have evolved up to 20 times independently, on almost every imaginable part of the body. So just what makes it so easy for insects to evolve ears? And why should we study them?

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