Sridhar Halali, graduate student researcher, writes: “While wandering amid the forests of India, I had always been struck by a few butterfly species, which seemed to exhibit different wing patterns in the wet and dry seasons. This is called ‘seasonal polyphenism’, and I found out subsequently that this phenomenon is one of the adaptations to the seasons experienced in the tropics. The wet season form … Continue reading Why do butterflies change their wing pattern with the seasons?