Through the Eyes of Butterfly

Below is a simulated compound-eye view showing how a Great Spangled Fritillary Butterfly sees another Great Spangled Fritillary Butterfly from different distances. The largest image, at top right, is what the butterfly would see at 18 centimeters’ distance. The lower image provides a simulated view at 7 centimeters (left), compared with the original photograph (right). At 18 centimeters a striking phenomenon occurs: If the “eye” or the subject moves slightly, large portions of the field of view seem to flash between all orange and all black. It may be more than coincidence that 18 centimeters (7 inches) is the typical courtship distance for this species. The regularity of the compound eye may act as a cross-correlation filter for the regularity of the spotted wing design.

Butterfly View Henry S. Horn Princeton Dept Ecology & Evolutionary Bio ss-111122-art-of-science-14.ss_full
Photo credit: Henry S. Horn, Princeton University, Department of Ecology and Evolutionary Biology

One thought on “Through the Eyes of Butterfly

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s