An illustration shows a young tyrannosaur, Gorgosaurus libratus, tearing apart and eating its prey, a bird-like dinosaur called Citipes elegans, in what’s now Alberta during the Cretaceous period. (Julius Csotonyi/Royal Tyrell Museum)
Scientists have made a rare and extraordinary fossil find in Alberta — a young tyrannosaur with the remains of two baby dinosaurs inside its stomach.
The discovery offers new hints about how tyrannosaurs’ behaviour and their role in ecosystems changed as they grew, say the Canadian researchers who led their study, published Friday in Science Advances.
Fewer than two dozen dinosaurs have ever been found with stomach contents, and most
