{"id":3620,"date":"2026-06-24T07:06:50","date_gmt":"2026-06-24T07:06:50","guid":{"rendered":"https:\/\/relocationtimess.com\/?p=3620"},"modified":"2026-06-24T07:06:50","modified_gmt":"2026-06-24T07:06:50","slug":"an-unusual-strategy-helps-some-tropical-butterflies-live-25-times-longer-than-their-relatives","status":"publish","type":"post","link":"https:\/\/relocationtimess.com\/?p=3620","title":{"rendered":"An unusual strategy helps some tropical butterflies live 25 times longer than their relatives"},"content":{"rendered":"<div>\n<div>\n<p>\n            Since most butterflies live a short time, fluttering between colorful flowers for a few weeks before dying, a few rare exceptions have stumped scientists. Now, some long-lived tropical butterfly species are shedding light on the secrets of longevity.\n    <\/p><p>Read more <a href=\"https:\/\/relocationtimess.com\/?p=3606\">The new power broker: How Zohran Mamdani muscled NYC\u2019s Democratic establishment<\/a><\/p>\n<p>\n            Butterflies belonging to the Heliconius genus, which inhabit the tropical rainforests of South and Central America, have lifespans that vary wildly. The Dione juno butterfly lives for 14 days after reaching adulthood, while Heliconius hewitsoni lives for 348 days \u2014 nearly 25 times longer.\n    <\/p>\n<p>\n            Other Heliconius species also have impressively lengthy lives, enduring between 106 to 277 days, according to a study on the phenomenon published Tuesday in the journal Nature Communications. Some scientists have speculated that Heliconius\u2019 extended adulthood is due to the insects consuming an enhanced diet, rather than relying purely on carbohydrates like other butterflies.\n    <\/p>\n<p>\n            But the exact reasons behind this unexpected longevity have been unclear, which is what inspired Dr. Jessica Foley, the study\u2019s lead author and a postdoctoral scholar at Tufts University\u2019s Jean Mayer USDA Human Nutrition Research Center on Aging in Boston, to take an in-depth look at the intriguing butterfly genus.\n    <\/p>\n<div>\n<header>\n<span>\n      Related video\n    <\/span>\n<\/header>\n<section>\n<div>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-full\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"111495_CR Butterfly Exports_THUMB_01.png\" class=\"wp-image-3614\" height=\"144\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/6dcae948041d3163aacfc9fe862b6454.png\" width=\"256\"\/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<\/div>\n<figcaption>CNN<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<p>\n<span>Here\u2019s how Costa Rica\u2019s butterflies end up around the world<\/span>\n<\/p>\n<div>\n<span><svg>\n<\/svg>\n<\/span>\n          2:59\n        <\/div>\n<\/div>\n<\/section>\n<\/div>\n<p>\n            \u201cWe see vast differences in lifespan across the animal kingdom \u2014 adult mayflies famously live only for a day, whereas some whales and sharks can live for hundreds of years,\u201d Foley wrote in an email. \u201cI\u2019m interested in the evolutionary basis of these kinds of lifespan differences because they might hold insights relevant for healthy ageing in humans.\u201d\n    <\/p>\n<p>\n            Foley and her colleagues discovered that while nutrition has its part to play, some Heliconius have also evolved an anti-aging mechanism the researchers are still unraveling \u2014 and how it could be a model for understanding human longevity.\n    <\/p>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-large\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"The older of two Heliconius melpomene butterflies (right) is identifiable based on the wear on its wings.\" class=\"wp-image-3615\" height=\"1024\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/eb006f43843bc0acfac505439a4f21e1.jpeg\" width=\"768\" srcset=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/eb006f43843bc0acfac505439a4f21e1.jpeg 768w, https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/eb006f43843bc0acfac505439a4f21e1-225x300.jpeg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<span>The older of two Heliconius melpomene butterflies (right) is identifiable based on the wear on its wings.<\/span>\n<\/div>\n<figcaption>Courtesy Elizabeth Hodge<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>\n        Evolving a special diet\n<\/h2>\n<p>\n            Studying the \u201cextreme agers\u201d of the animal kingdom is an uphill task for scientists, especially if they have to wait centuries for a species to reach what is considered old, Foley said.\n    <\/p>\n<p>\n            Lesser-studied Heliconius butterflies presented the perfect case study since researchers could observe their entire life cycle in about a year. Only one other known butterfly, Myscelia cyanaris, lives longer than Heliconius, with a maximum lifespan of 380 days, but there is little data to suggest why.\n    <\/p>\n<p>\n            Foley and her collaborators combined an expansive dataset to look at lifespan and aging patterns across the Heliconius genus, using information collected from commercial butterfly houses and mark, release and recapture studies, as well as controlled experiments.\n    <\/p>\n<p>\n            The authors wanted to see whether removing an unusual food source from the diets of these butterflies would shorten their lifespan, she added.\n    <\/p>\n<p>\n            Most adult butterflies feed exclusively on flower nectar, fueled only by carbohydrates rather than the amino acids and lipids \u2014 used for egg and sperm needed to reproduce \u2014 they received from plant material as caterpillars before metamorphosing.\n    <\/p>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-medium_large\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"An adult Heliconius erato appears next to a pupa of the same species.\" class=\"wp-image-3616\" height=\"512\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/23a2b911045bcc5d3a60f81c87628539.jpeg\" width=\"768\" srcset=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/23a2b911045bcc5d3a60f81c87628539.jpeg 768w, https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/23a2b911045bcc5d3a60f81c87628539-300x200.jpeg 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<span>An adult Heliconius erato appears next to a pupa of the same species.<\/span>\n<\/div>\n<figcaption>Courtesy Sebasti\u00e1n Mena<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\n            \u201cThe general evolutionary strategy is to reproduce as much as they can until those resources are spent, which doesn\u2019t take very long for these small insects,\u201d Foley said of the lipids and amino acids. \u201cThey usually die soon after this finite resource is used up.\u201d\n    <\/p>\n<p>\n            However, most Heliconius species have adapted to feed on pollen \u2014 even as adults \u2014 which could provide the insects with more energy, the authors concluded. Pollen also contains lipids, which help with energy storage but also boost immunity.\n    <\/p>\n<p>\n            The authors closely studied the relationship between Heliconius and pollen to see what health benefits the butterflies gained from their diets.\n    <\/p><p>Read more <a href=\"https:\/\/relocationtimess.com\/?p=3598\">Watch the first-ever video of a newfound spider\u2019s spring-loaded death trap<\/a><\/p>\n<p>\n            \u201cI wanted to understand the real extent of this lifespan extension in Heliconius, to understand whether it was also accompanied by slowed physiological ageing, and to figure out whether theywould still show a lifespan extension \u2014 indicating evolved mechanisms of longevity \u2014 even without the pollen,\u201d Foley said.\n    <\/p>\n<p>\n            Of the 28 Heliconius species the researchers studied, only six were non-pollen-feeding, and they lived between 14 to 98 days. But the team\u2019s observations showed that even when pollen was withheld, the Heliconius butterflies still lived much longer than their non-pollen feeding relatives.\n    <\/p>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-medium_large\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"A large load of pollen grains makes a meal for a Heliconius erato butterfly.\" class=\"wp-image-3617\" height=\"512\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/e6898f2d89400078fb2a440fa892e1d8.jpeg\" width=\"768\" srcset=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/e6898f2d89400078fb2a440fa892e1d8.jpeg 768w, https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/e6898f2d89400078fb2a440fa892e1d8-300x200.jpeg 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<span>A large load of pollen grains makes a meal for a Heliconius erato butterfly.<\/span>\n<\/div>\n<figcaption>Courtesy Sebasti\u00e1n Mena<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>\n        An evolutionary mystery\n<\/h2>\n<p>\n            The team also used a unique device to measure age-related decline in older butterflies with a grip-strength test. They built a device called \u201cThe Pullinator,\u201d or a perch lined with sandpaper that was attached to a lightweight wooden base.\n    <\/p>\n<p>\n            \u201cWe placed this on a lab balance, zeroed the balance, and then gently held a butterfly by the wings and lowered it until it grasped the perch,\u201d Foley said. \u201cWe then tugged until it let go \u2014 but as the butterfly tugged, the balance would drop negative, and we could use the maximum negative reading as an indication of how much weight the butterfly could carry before it let go.\u201d\n    <\/p>\n<p>\n            The Heliconius hecale butterfly species, which can live up to 277 days, showed little or no physiological decline during the grip-strength test, while the closely related Dryas iulia, which doesn\u2019t feed on pollen and lives for 98 days, showed signs of age-related decline. Heliconois hecale also maintained body mass and muscle function for longer \u2014 even when deprived of pollen.\n    <\/p>\n<div>\n<header>\n<span>\n      Related article\n    <\/span>\n<\/header>\n<section>\n<div>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-full\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"Bumble bee standing on a ball beneath the artificial flower, illustrating the experimental solution.\" class=\"wp-image-3618\" height=\"144\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/b721e2cdd13180031d2ab3118b607b8b.jpg\" width=\"256\"\/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<span>Bumble bee standing on a ball beneath the artificial flower, illustrating the experimental solution.<\/span>\n<\/div>\n<figcaption>Mikko T\u00f6rm\u00e4nen<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<p>\n<span>Bumblebees show advanced problem-solving skills in new experiment<\/span>\n<\/p>\n<div>6  min read<\/div>\n<\/div>\n<\/section>\n<\/div>\n<p>\n            The findings showed that overall, many pollen-feeding Heliconius species had longer lifespans and slower rates of aging, suggesting that nutrition is an important factor. Pollen-derived amino acids also help the butterflies continually produce more eggs as adults, lengthening their reproductive lifespans, Foley said.\n    <\/p>\n<p>\n            But given that permanently removing pollen from the diets of the butterflies seemed to have no negative impact on their longevity, the researchers suspect that much like the insects evolved a pollen-based diet, they have also evolved to live longer.\n    <\/p>\n<p>\n            \u201cWe show that these butterflies do have evolved mechanisms of longevity, and that they also seem to have evolved a delayed physiological decline, making them excellent new models for studying the mechanisms allowing for long life,\u201d Foley said. \u201cHowever, we do not yet know what these mechanisms are.\u201d\n    <\/p>\n<h2>\n        Longevity in the animal kingdom\n<\/h2>\n<div>\n<div>\n\n<figure class=\"wp-block-image size-medium_large\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" alt=\"A female Heliconius erato lays an egg on a plant.\" class=\"wp-image-3619\" height=\"512\" src=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/06d5e126ba7d6a524937c426b6cf24c1.jpeg\" width=\"768\" srcset=\"https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/06d5e126ba7d6a524937c426b6cf24c1.jpeg 768w, https:\/\/relocationtimess.com\/wp-content\/uploads\/2026\/06\/06d5e126ba7d6a524937c426b6cf24c1-300x200.jpeg 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/figure>\n\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<span>A female Heliconius erato lays an egg on a plant.<\/span>\n<\/div>\n<figcaption>Courtesy Sebasti\u00e1n Mena<\/figcaption>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\n            Foley\u2019s colleagues are interested in investigating the more mysterious longevity mechanisms of Heliconius, as well as the butterflies\u2019 robust cognition \u2014 they have large brains and impressive long-term memory, even as they age, she said.\n    <\/p>\n<p>\n            Studying worms, flies and yeast have enabled scientists to understand better how the mechanisms of aging work in humans. Looking at more examples from the animal kingdom can be used to identify solutions that evolution has found for the problem of aging, Foley said.\n    <\/p>\n<p>\n            The new research shows that Heliconius can be a potential model insect group for studying increased longevity, including adaptations that could slow aging and have potential applicability to humans, said Dr. Jaret C. Daniels, curator and interim associate director for the McGuire Center for Lepidoptera and Biodiversity at the Florida Museum of Natural History. Daniels was not involved in the study.\n    <\/p>\n<p>\n            \u201cThis study reinforces the utility of many insect groups and important model organisms for various fields of research,\u201d Daniels said in an email. \u201cSince many insects are often overlooked or underappreciated\/undervalued by humans, studies like this can help change that perspective.\u201d\n    <\/p>\n<p>\n    Sign up for CNN\u2019s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more.\n<\/p><p>Read more <a href=\"https:\/\/relocationtimess.com\/?p=3590\">Japan isn\u2019t quite where it once was. Scientists say a newly recognized seismic event is to blame<\/a><\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A tropical butterfly from the Heliconius tribe has evolved to live a maximum lifespan of 348 days, nearly 25 times longer than its relatives.<\/p>\n","protected":false},"author":1,"featured_media":3607,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,8],"tags":[],"class_list":["post-3620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-life","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>An unusual strategy helps some tropical butterflies live 25 times longer than their relatives - Relocation Times<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/relocationtimess.com\/?p=3620\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An unusual strategy helps some tropical butterflies live 25 times longer than their relatives - 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