{"id":110199,"date":"2026-08-17T13:21:06","date_gmt":"2026-08-17T13:21:06","guid":{"rendered":"https:\/\/www.uri.edu\/news\/?p=110199"},"modified":"2026-08-17T13:21:07","modified_gmt":"2026-08-17T13:21:07","slug":"uri-researchers-travel-to-australia-to-unlock-the-hidden-life-history-of-leopard-seals","status":"publish","type":"post","link":"https:\/\/www.uri.edu\/news\/2026\/08\/uri-researchers-travel-to-australia-to-unlock-the-hidden-life-history-of-leopard-seals\/","title":{"rendered":"URI researchers travel to Australia to unlock the hidden life history of leopard seals"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">KINGSTON, R.I. \u2013 Aug. 17, 2026 \u2013 The skulls have been sitting on museum shelves for more than a century. Many still carry handwritten tags and notes from the scientists and explorers who collected them in the late 1800s and early 1900s. These specimens preserve clues within their bones and teeth about the animals they came from\u2014including their sex, age at death, and diet. Now, University of Rhode Island researchers are using those clues to address longstanding questions about leopard seal biology.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This summer, <a href=\"https:\/\/scholar.google.com\/citations?user=tLB6qc0AAAAJ&amp;hl=en\">Emily Sperou<\/a>, Ph.D., a postdoctoral researcher in URI&#8217;s Comparative Ecophysiology of Animals Lab (<a href=\"https:\/\/www.sarahskienle.com\/\">CEAL<\/a>), and <a href=\"https:\/\/web.uri.edu\/nrs\/meet\/sarah-kienle-2\/\">Sarah Kienle<\/a>, Ph.D., assistant professor of wildlife biology and director of the CEAL lab, traveled to four museums across Australia, photographing, scanning, and collecting samples from about 100 leopard seal skulls.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--768x1024.jpg\" alt=\"\" class=\"wp-image-110202\" style=\"aspect-ratio:0.7500115117189299;width:382px;height:auto\" srcset=\"https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--768x1024.jpg 768w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--225x300.jpg 225w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--1152x1536.jpg 1152w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--1536x2048.jpg 1536w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--364x485.jpg 364w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--500x667.jpg 500w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--1000x1333.jpg 1000w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle--1280x1707.jpg 1280w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/kienle-.jpg 1800w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">Sarah Kienle, director of URI\u2019s Comparative Ecophysiology of Animals Lab (CEAL).<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">The work is part of a larger international project aimed at filling critical knowledge gaps about one of Antarctica\u2019s top predators: the leopard seal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A lab inside a museum<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The CEAL team identified museums around the world with some of the largest leopard seal collections and contacted each institution to secure permission to collect small samples from the skulls\u2014a process that took years. \u201cAlmost all of the museums we have reached out to have been very generous and want to work with us to support the leopard seal project,\u201d Sperou said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Their Australian itinerary included visiting the Queen Victoria Museum in Launceston, the Tasmanian Museum and Art Gallery in Hobart, the Melbourne Museum (part of Museums Victoria) in Melbourne, and the Australian Museum in Sydney.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At each stop, the researchers transformed behind-the-scenes museum workspaces into temporary laboratories. &#8220;We bring a suitcase worth of gear,&#8221; Kienle said. &#8220;Dental tools, drill bits, vials for samples, 3D scanners, and accessories.\u201d<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-768x1024.jpg\" alt=\"\" class=\"wp-image-110203\" style=\"aspect-ratio:0.750008048678407;width:386px;height:auto\" srcset=\"https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-768x1024.jpg 768w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-225x300.jpg 225w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-1152x1536.jpg 1152w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-1536x2048.jpg 1536w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-364x485.jpg 364w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-500x667.jpg 500w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-1000x1333.jpg 1000w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou-1280x1707.jpg 1280w, https:\/\/www.uri.edu\/news\/wp-content\/uploads\/news\/sites\/16\/2026\/08\/sperou.jpg 1800w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">Emily Sperou, a postdoctoral researcher in URI&#8217;s CEAL Lab.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">They followed a meticulous process with every skull. First came high-resolution photographs for measurements. Next, they spent up to 90 minutes creating a detailed 3D scan. Then they drilled into the occipital condyle to collect a gram of bone powder through a hole no larger than a pencil eraser, before carefully extracting a single canine tooth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each sample reveals a different piece of the animal&#8217;s life history. The 3D scans reveal differences in skull shape and size; the teeth provide clues about age, lifespan, sexual maturity, dietary specialization, and changes in hormones through time; and bone samples help determine sex and lifetime dietary patterns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Together, those data will help answer surprisingly basic questions still unknown about leopard seals, such as how many pups they have in their lifetime and what age they reach sexual maturity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A time capsule for conservation<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beyond the scientific data, the century-old specimens tell stories of their own.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cI think one of the best surprises is seeing some of the very historical samples and the notes left about the specimen from the original collector,\u201d Sperou said. \u201cSome of these skulls are from the 1800s and had different species names during that time.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kienle shares that fascination. &#8220;I love looking at the tags on the animals to see people&#8217;s handwriting, the scientific names that were used, and seeing names I&#8217;ve read about in old papers,&#8221; she said. &#8220;I am always surprised by the injuries that animals clearly survived\u2014like a broken jaw or extremely worn teeth. It makes me wish I could go back in time and see the animal in action.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The project will benefit the museums, too. Many historical specimens lack basic information such as the animal&#8217;s age or sex. By analyzing the samples, the URI researchers will be able to provide that missing information so museum records can be updated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;Museum collections are invaluable,&#8221; Kienle said. &#8220;They are an irreplaceable time capsule of data on species\u2014both living and extinct\u2014that can help us understand how species survived in the past, inform our understanding of the present, and help us make predictions about their survival in the future.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sperou agrees that museum collections make it possible to answer questions that fieldwork alone never could. &#8220;Without museum collections, many of these questions could never be answered using only live animals,&#8221; she said. &#8220;They are an invaluable resource for understanding how species have changed over time.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ultimately, the team hopes these findings will provide the biological foundation needed to understand how leopard seals may respond as climate change reshapes their environment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>This story was written by Anna Gray in URI\u2019s College of the Environment and Life Sciences.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>KINGSTON, R.I. \u2013 Aug. 17, 2026 \u2013 The skulls have been sitting on museum shelves for more than a century. Many still carry handwritten tags and notes from the scientists and explorers who collected them in the late 1800s and early 1900s. These specimens preserve clues within their bones and teeth about the animals they [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":110200,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[5,1914,1909,1905],"class_list":["post-110199","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archives","tag-college-of-the-environment-and-life-sciences","tag-graduate","tag-international","tag-research"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts\/110199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/comments?post=110199"}],"version-history":[{"count":5,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts\/110199\/revisions"}],"predecessor-version":[{"id":110207,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts\/110199\/revisions\/110207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/media\/110200"}],"wp:attachment":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/media?parent=110199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/categories?post=110199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/tags?post=110199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}