Before 2025, paleontologists had confirmed exactly two footprints anywhere in the world made by an adult Tyrannosaurus rex — one in New Mexico, one in Montana. Isolated prints, each capturing a single instant, with no way to tell how the animal that made them actually moved. That changed with a discovery in the badlands of […]

A team of paleontologists has discovered on King George Island, in the South Shetland Islands, the first fossil footprint unequivocally attributable to a terrestrial mammal in the Eocene of Antarctica. It is a specimen barely two centimeters long, preserved as a natural mold in fine-grained volcanic sediment, providing direct evidence of the presence of a […]