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Story summary
- UCLA scientists measured T. rex body temperature using isotopic analysis of three teeth.
- Randy Flores and co-authors estimated the average temperature at 97 °F (36.3 °C), comparable to humans.
- Robert Eagle reported the T. rex temperature exceeded the 25.9 °C ambient temperature in Montana.
- The high temperature suggests T. rex was an energetic predator capable of activity in cooler climates.