Ars Technica
Scientists used clumped isotope thermometry on T. rex teeth to find it ran at about 36°C - elephant temperature - settling a debate and confirming the giant predator was warm-blooded.
ScienceDaily
A T. rex tooth found embedded in an Edmontosaurus skull offers scientists a rare glimpse into Cretaceous crime, with no signs of healing - suggesting the duckbill either met a violent end or was already dead when the T. rex decided to chow down.
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