T. Rex Babies Were No Bigger Than House Cats—But Already Deadly
Paleontologists know very little about Tyrannosaurus rex babies. A new study published this month in the journal Biology has analyzed fossils from two tyrannosaurid hatchlings, some classic T. rex and others from its close cousin Gorgosaurus libratus. Both species, the researchers found, displayed persuasive dental and vascular evidence that their little infant progeny were actually quite active and quite lethal.
- ▪Paleontologists know very little about Tyrannosaurus rex babies.
- ▪A new study published this month in the journal Biology has analyzed fossils from two tyrannosaurid hatchlings, some classic T. rex and others from its close cousin Gorgosaurus libratus.
- ▪Both species, the researchers found, displayed persuasive dental and vascular evidence that their little infant progeny were actually quite active and quite lethal.
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| Canonical URL | https://gizmodo.com/t-rex-babies-were-no-bigger-than-house-cats-but-already-deadly-2000790254 |
| Publication time | Fri, 24 Jul 2026 12:42:53 +0000 |
| Retrieval time | 2026-07-24T12:47:48.084Z |
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Paleontologists know very little about Tyrannosaurus rex babies. Given how long these iconic carnivores have loomed over the public imagination, it might surprise you to learn that the first fossilized remains of an embryo belonging to any member of the tyrannosaurid family was only first confirmed in the peer-reviewed literature back around 2021.cnx.cmd.push(function(){cnx({"playerId":"92b7b46b-43ed-4e0e-b21b-2c999302d9d7","settings":{"advertising":{"macros":{"AD_UNIT":"/23178111854/od.gizmodo.com/article","CHILD_UNIT":"article","POST_ID":"2000790254","POST_TYPE":"post","CHANNEL":"science","SECTION":"biology","SUBSECTION":"","CATEGORIES":"biology","TAGS":"ct-scans,dinosaurs,paleontology,tyrannosaurus-rex","NOP":"0"},"timeBeforeFirstAd":0}}}).render("cnx-player-main")}); It’s a shame we…
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