The Effective Visual Acuity of Butterflies in Flight
Jack Supple, Wenxin Li, Marko Ilić, Monika Kos, Huai‐Ti Lin, Gregor Belušič, Holger G. Krapp
This study quantifies how gaze stabilisation limits motion blur in freely flying Monarch butterflies, showing that thoracic oscillations broaden the effective photoreceptor acceptance angle, degrading spatial acuity.
bioRxiv · Oct 8, 2026 · PreprintNeuroscience