{"id":2148,"date":"2026-09-21T01:07:00","date_gmt":"2026-09-20T16:07:00","guid":{"rendered":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-21-t-rex-body-temperature-en\/"},"modified":"2026-09-21T01:07:00","modified_gmt":"2026-09-20T16:07:00","slug":"2026-09-21-t-rex-body-temperature-en","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-21-t-rex-body-temperature-en\/","title":{"rendered":"Three T. rex teeth point to an average body temperature near 36\u00b0C"},"content":{"rendered":"

2026-09-21 01:07 KST<\/strong><\/p>\n

Heavy carbon and oxygen isotopes clump differently as enamel forms at different temperatures; the team inverted that signal.<\/p>\n

The three teeth came from Montana\u2019s Hell Creek Formation and averaged about 97\u00b0F, close to modern elephants and the human range.<\/p>\n

What changed<\/h2>\n

Earlier evidence already suggested warm-blooded tyrannosaurs. The new contribution is a specific chemical temperature constraint.<\/p>\n

Not the same as humans<\/h2>\n

A similar number does not imply identical metabolism, growth or heat loss; a giant body can also retain heat.<\/p>\n

\"Three
This AI-generated image explains the topic; it is not a photograph of an actual event, observation or field site.<\/figcaption><\/figure>\n

Sample limits<\/h2>\n

Three teeth cannot capture every individual, season or body part, and preservation or later chemistry requires correction.<\/p>\n

Next check<\/h2>\n

The method should be repeated across more tyrannosaurs and dinosaur groups; data and code are available for scrutiny.<\/p>\n

Primary source and independent checks<\/h2>\n

Science Advances \uc6d0 \ub17c\ubb38<\/a><\/p>\n

UCLA \uc5f0\uad6c\uae30\uad00 \uc124\uba85<\/a><\/p>\n

Associated Press \ub3c5\ub9bd \ud655\uc778<\/a><\/p>\n

Read in other languages<\/h2>\n

\ud55c\uad6d\uc5b4<\/a> \u00b7 English<\/a> \u00b7 Espa\u00f1ol<\/a> \u00b7 \u65e5\u672c\u8a9e<\/a> \u00b7 Ti\u1ebfng Vi\u1ec7t<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers estimated an average temperature near 36\u00b0C from clumped isotopes in three Tyrannosaurus rex teeth. This is not a direct thermometer reading and the small sample cannot represent every dinosaur.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-2148","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/2148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=2148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}