Scientists Reconstruct 165-Million-Year-Old Jurassic Insect Sounds

One hundred and sixty-five million years before a human ear could have been present to hear it, the Jurassic forest hummed with ultrasonic calls no living person will ever naturally perceive. Scientists have now reconstructed the vocalizations of ancient katydids by reading the microscopic architecture of fossilized wings, discovering that insects had mastered high-frequency acoustic communication tens of millions of years before bats would independently arrive at the same strategy. The achievement is less about a single species and more about what it reveals: that the deep past was never trul