{"id":412017,"date":"2026-01-17T01:55:09","date_gmt":"2026-01-17T01:55:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/412017\/"},"modified":"2026-01-17T01:55:09","modified_gmt":"2026-01-17T01:55:09","slug":"scientists-uncover-secrets-to-tyrannosaurus-rexs-lifespan","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/412017\/","title":{"rendered":"Scientists Uncover Secrets to Tyrannosaurus Rex\u2019s Lifespan"},"content":{"rendered":"<p class=\"c-paragraph\">The prehistoric Tyrannosaurus rex didn\u2019t balloon to its massive size as quickly as scientists once believed. Instead, the apex predator grew more slowly and lived longer, according to a new study published by the <a onclick=\"_sendArticleBodyInlineLinkClickAnalytics(&#039;https:\/\/peerj.com\/articles\/20469\/&#039;)\" href=\"https:\/\/peerj.com\/articles\/20469\/\" target=\"_self\" rel=\"nofollow noopener\" title=\"https:\/\/peerj.com\/articles\/20469\/\">Journal Peer<\/a> on Wednesday. Researchers examined bones from 17 specimens under polarized light, and scientists identified additional growth rings that had previously gone undetected. The findings suggest that T. rex wouldn\u2019t have reached its staggering weight of roughly eight tons until around 35 to 40 years old\u2014upending earlier estimates that placed peak size at around 25 years, with death occurring shortly after. Lead study author Holly Woodward said the analysis shows that \u201cT. rex spent most of its life in the mid-body size range rather than achieving a total body length of 40 feet quickly.\u201d She added that variation in growth-ring spacing indicates the dinosaur\u2019s development was likely influenced by food availability and environmental conditions. That prolonged growth, Woodward said, helps explain why the T. rex was such a dominant apex carnivore. By growing slowly over decades, the species occupied different food niches throughout its life\u2014feeding on a wider range of prey sizes\u2014before eventually reaching a size where it competed mainly with other T. rex for resources.<\/p>\n<p><a class=\"read-it-at-btn\" href=\"https:\/\/www.cnn.com\/2026\/01\/15\/science\/tyrannosaurus-rex-growth-rate-study-scli-intl\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Read it at CNN<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"The prehistoric Tyrannosaurus rex didn\u2019t balloon to its massive size as quickly as scientists once believed. Instead, the&hellip;\n","protected":false},"author":2,"featured_media":412018,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[79,85915],"class_list":["post-412017","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-science","tag-tyrannosaurus-rex"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/412017","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=412017"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/412017\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/412018"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=412017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=412017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=412017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}