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Story summary
- Scientists used AI to model Jurassic insect chirps from fossil wings.
- They examined 20 well-preserved insects from Inner Mongolia representing nine cricket-like species.
- AI simulations showed most calls at ~5 kHz, matching modern crickets.
- Sigmaboilus peregrinus was modeled to emit 20–22 kHz ultrasonic chirps.
- Because the chirps predate the first bats, the Aug 25 PNAS study suggests other predators drove high-pitch evolution.
