Heliconius butterflies live longer and age more slowly than close relatives, with experiments suggesting that pollen alone cannot explain their longevity. Some Heliconius butterflies, found in tropical rainforests across South and Central America, can survive for almost a year while most butterflies live only a few weeks. Their unusual diet has been one possible explanation [...]from SciTechDaily https://ift.tt/l2p0y4M
