Butterfly Wings and Flight Combine to Dazzle Predators, Study Finds
A new Nature paper proposes that butterfly wing patterns and flight movements work together as motion dazzle camouflage, confusing predators' perception of speed and direction.
A new paper published in the journal Nature suggests that butterfly flight and wing patterns combine to make it hard for predators to gauge speed and direction. The study proposes that the wing patterns act as an anti-predator defense via motion dazzle.
Co-author George Hancock of the University of Exeter in Cornwall said the stripes and spots on butterfly wings interfere with visual systems' attempts to guess the direction and speed of moving things.
The research adds to a growing body of work on how animals use pattern and motion to evade capture. According to the paper, the combined effect of wing markings and flight behavior creates a visual confusion that benefits the butterfly.
In 1938, the growth of butterfly wings was first documented. More recently, in 2021, MIT researchers captured on video the structural growth of butterfly wings inside a chrysalis for the first time.
The new findings, reported by arstechnica.com, focus on the function of those wings in motion rather than their development.
Quick answers
What is motion dazzle?
Motion dazzle is a proposed anti-predator defense in which patterns on a moving animal interfere with a predator's ability to judge its speed and direction.
Who co-authored the study?
George Hancock of the University of Exeter in Cornwall is a co-author.
Where was the paper published?
The paper was published in the journal Nature.