Study models how butterfly wing stripes trick predator motion vision
Researchers built a biologically informed motion-detection model, based on elementary motion detectors used to study cuttlefish hunting displays, to test how butterfly wing patterns affect motion perception. The model simulated bird-like visual limits, including spatial acuity and flicker fusion frequency, at viewing distances scaled to butterfly size. Video recordings of butterflies were filtered to match what a bird predator would actually be able to see before initiating an attack.