Gorgosaurus stomach contents and the diets of juvenile tyrannosaurs! Here is the conclusion of my discussion with Dr. François Therrien (Royal Tyrrell Museum). While adult T-Rexes were famous for hunting giant herbivores, recent fossil evidence reveals that young tyrannosaurs had a taste for something much smaller.

On the show, the discovery of an adolescent Gorgosaurus libratus that preserved its final meal: the hind limbs of two small, bird-like dinosaurs. This confirms a ontogenetic dietary shift, proving that tyrannosaurs occupied multiple ecological niches throughout their lives—acting as different species as they grew

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The "Last Meal" Discovery: How technicians unco ...