Ending Soon! Save 33% on All Access

Turns Out There Were Once Billions of T. Rexes, and They Hunted Their Prey in Terrifying Packs Scientists have discovered that the most tyrannical dinosaur was more omnipresent and socially inclined than previously imagined.

By Kenny Herzog

Mark Stevenson/Stocktrek Images | Getty Images

It turns out the majority of prehistoric creatures weren't merely outsized by the mighty Tyrannosaurus Rex — they were outnumbered by it as well. The massive carnivores apparently traveled in murderous packs, like werewolves of the Mesozoic Era — 15-feet-tall, several-ton, lizardlike werewolves with a predatory mandate to consume anything made of meat and flesh, including its own kind.

On that last point, the Utah Bureau of Land Management shared peer-reviewed findings this week that T. rexes may well have roamed for sustenance in groups of four or five, contrary to the popular notion that they barnstormed the land as solitary scavengers. The gist is this: Fossils uncovered at a relatively new discovery site inside the Grand Staircase-Escalante National Monument called the Rainbows and Unicorns Quarry (seriously) indicate that, per the Bureau's press release, a group of several tyrannosaurs "died together during a seasonal flooding event that washed their carcasses into a lake, where they sat, largely undisturbed until the river later churned its way through the bone bed." And, as T. rex expert Philip Currie added to the summary, this joins "a growing body of evidence that tyrannosaurids were capable of interacting as gregarious packs."

Related: Scientists Say They Can Recreate Living Dinosaurs Within the Next Few Years

As if that weren't already fodder for a future installment of the cinematic Monsterverse, the Bureau's news comes on the heels of recent research published in Science suggesting more than 2.5 billion T. rexes roamed the earth over a period of a few millon years. That works out to around 20,000 of the giant havoc-wreakers having their way with lesser lifeforms at any given time — and apparently in roving packs that were only humbled by climactic ruptures beyond anyone's imagination.

Just something to keep in mind as you consider the headline of that "Related" link above.

Kenny Herzog

Entrepreneur Staff

Digital Content Director

Kenny Herzog is currently Digital Content Director at Entrepreneur Media. Previously, he has served as Editor in Chief or Managing Editor for several online and print publications, and contributed his byline to outlets including Rolling Stone, New York Magazine/Vulture, Esquire, The Ringer, Men's Health, TimeOut New York, A.V. Club, Men's Journal, Mic, Mel, Nylon and many more.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Side Hustle

These Brothers Had 'No Income' When They Started a 'Low-Risk, High-Reward' Side Hustle to Chase a Big Dream — Now They've Surpassed $50 Million in Revenue

Sam Lewkowict, co-founder and CEO of men's grooming brand Black Wolf Nation, knows what it takes to harness the power of side gig for success.

Science & Technology

3 Major Mistakes Companies Are Making With AI That Is Limiting Their ROI

With so many competing narratives around the future of AI, it's no wonder companies are misaligned on the best approach for integrating it into their organizations.

Business News

A University Awarded a Student $10,000 for His AI Tool — Then Suspended Him for Using It, According to a New Lawsuit

Emory University awarded the AI study aid the $10,000 grand prize in an entrepreneurial pitch competition last year.

Business News

He Picked Up a Lucky Penny In a Parking Lot. Moments Later, He Won $1 Million in the Lottery.

Tim Clougherty was in for a surprise when he scratched off his $10,000-a-month winning lottery ticket.

Leadership

How to Break Free From the Cycle of Overthinking and Master Your Mind

Discover the true cost of negative thought loops — and practical strategies for nipping rumination in the bud.

Leadership

How a $10,000 Investment in AI Transformed My Career and Business Strategy

A bold $10,000 investment in AI and machine learning education fundamentally transformed my career and business strategy. Here's how adaption in the ever-evolving realm of AI — with the right investment in education, personal growth and business innovation — can transform your business.