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'The tipping point:' First T. rex mass death site in southern US, found in Utah, strengthens evidence of pack behavior

April 19, 2021 USATODAY - News Top Stories

K. Sophie Will, St. George Spectrum & Daily News 'The tipping point:' First T. rex mass death site in southern US, found in Utah, strengthens evidence of pack behavior

'The tipping point:' First T. rex mass death site in southern US, found in Utah, strengthens evidence of pack behavior

The pack of four, possibly five, T. rexes likely died in a seasonal flood after a slow-burn fire between 66 and 100 million years ago, scientists say.