Summary:
- Recent paleontological research suggests that *Tyrannosaurus rex* possessed a warm-blooded metabolism (endothermy) rather than the cold-blooded (ectothermic) physiology traditionally associated with reptiles.
- The study utilizes advanced bone growth analysis and metabolic rate modeling to provide evidence that T. rex maintained a high, consistent body temperature, which would have supported the high energy demands required for an active, apex predator lifestyle.