New fossil discoveries indicate that young *Tyrannosaurus rex* were capable predators from the moment they hatched, challenging previous assumptions about their development.
A recent report by Nature staff details findings suggesting baby *T. rex* were born killers. The research centers around newly examined fossils of juvenile tyrannosaurs. These fossils demonstrate features consistent with predatory capabilities even at a very young age.
The discovery challenges the long-held belief that juvenile tyrannosaurs relied heavily on scavenging or parental care for sustenance, instead proposing they actively hunted prey shortly after hatching. This is supported by evidence within the fossil record showing developed teeth and bone structures suited to tackling and consuming live animals. The Nature briefing highlights this research alongside discussions of ancient Egyptian princesses and London’s growing role as a hub for AI safety.
The article, published online on July 24, 2026 (doi:10.1038/d41586-026-02338-2), presents this information as part of a broader ‘Briefing Chat’ covering various scientific and cultural topics.
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