In Costa Rica,
Heliconius butterflies
thrive, ageless in flight.
Heliconius butterflies
thrive, ageless in flight.
Scientists discovered that Heliconius butterflies have evolved an extraordinary lifespan, living several times longer than closely related species. Even more surprising, some show little sign of physical decline as they age. Their unusual pollen-feeding lifestyle may play a role, but the research suggests deeper evolutionary…