Multiple outlets report findings on Heliconius butterflies that appear to age more slowly than closely related species. The research compares lifespans across species and highlights that some Heliconius butterflies can live for months, while others related butterflies survive only weeks. NPR notes that Tufts University researcher Jessica Foley studies why these differences in aging exist and points to Heliconius butterflies as a potential model for understanding the biology of longevity. ScienceDaily adds that scientists have identified Heliconius butterflies with lifespans several times longer than those of nearby species and that some show limited signs of physical decline as they age. The reports suggest the butterflies’ diet may contribute to their extended health, specifically their pollen-feeding lifestyle, though they also indicate that evolutionary changes beyond diet likely play a role. Together, the sources describe Heliconius butterflies as an example of unusually extended lifespan and reduced apparent deterioration over time, potentially offering clues to the mechanisms that influence aging in living organisms.