Newly discovered Tyrannosaurus mcraeensis, potentially T. rex’s closest relative, lived 71-73 million years ago in southern Laramidia, indicating the early evolution of giant tyrannosaurs. A…

Newly discovered Tyrannosaurus mcraeensis, potentially T. rex’s closest relative, lived 71-73 million years ago in southern Laramidia, indicating the early evolution of giant tyrannosaurs. A…
Chinese researchers traced 2023 Icelandic volcanic emissions to Arctic smog, showing 80% of Ny-Ålesund’s sulfur …