72-Million-Year Mass Dinosaur Die-Off Uncovered In Canada

10,000 dinosaurs died in a single day 72 million years ago, and scientists have finally uncovered what happened.

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The "River of Death" in Alberta, Canada contains one of North America's densest dinosaur bonebeds with up to 300 bones per square meter.

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These aren't just any dinosaurs - they're Pachyrhinosaurus, relatives of Triceratops with distinctive bony frills and a large bump on their nose instead of a horn.

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What could kill thousands of massive dinosaurs all at once? The answer lies in the swirling patterns found in the rock layers.

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Scientists believe a catastrophic flash flood hit during migration, trapping the entire herd. These two-ton creatures were too top-heavy to escape the rushing water.

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The discovery includes dinosaurs of all ages - from babies to adults - giving scientists a rare snapshot of an entire prehistoric community frozen in time.

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This extraordinary mass grave is now featured in BBC's revival of "Walking With Dinosaurs," premiering May 25, 2025 in the UK.

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Prepare for a shock - the new series shows T. rex with lips! Scientists now believe these fearsome predators didn't constantly bare their teeth like in Jurassic Park.

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Forget dull green dinosaurs - the latest research shows they were colorful creatures. The show even depicts Albertosaurus with bright pink eyebrows!

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While 8,000 bones have already been collected, researchers have barely scratched the surface. The site will continue revealing dinosaur secrets for over a century.

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