I think butterflies when they respond to other butterflies of the same pattern, or animals when they run away from something striped respond in a fairly simple way to particular patterns of color. (religion-online.org)
It affects other butterflies but it continues to be used commercially. (scientificamerican.com)
The mechanical hinge on the 99R is extremely well - crafted compared to other butterfly open safety razors. (primandprep.com)