In an earlier episode, we talked about the butterfly mating behavior known as hilltopping, in which male butterflies try to appeal to females by flying as high as possible. A listener in Fairbanks, Alaska, reports that the term hilltopping is used...
Hiking in the mountains, Martha kept noticing butterflies at about 4,000-to-5,000 feet above sea level. Those butterflies are hilltopping. It’s when male butterflies of many species go to high points to advertise their fortitude and genes to the...
A caller suspects that the word butterfly derives from a reversal of the expression “flutter by.” But is it? Her question leads to a discussion of butterfly behavior and a handy five-letter word that means “caterpillar poop.”...
