A late-Cretaceous tyrannosaurid, king of the North American ecosystem.
Scientists have linked a dust cloud from an asteroid impact to extreme climate effects that contributed to the end-Cretaceous mass extinction. New simulations show fine post-impact dust amplified atmospheric heating and wildfire risk, reshaping how we understand the extinction trigger and the environmental aftermath.
Museums and collectors are grappling with how the UK should protect fossils and determine if finds deserve national treasure status after high-profile sales and debates about export rules.
A fossil from 324 million years ago suggests insects had more legs than today and may reshape understanding of early arthropods during the hexapod gap.
Scientists have used tooth enamel chemistry to estimate Tyrannosaurus rex’s body temperature at about 36°C, placing it among warm‑blooded animals. The research, based on clumped isotope thermometry, is published in Science Advances and relies on enamel from three teeth from Hell Creek Formation fossils.