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‘Tyrants Aisle’ reveals ancient dinosaur footprints

72-million-year-old tracks found on a riverbank in Canada.

Artist's impression of three types of dinosaurs at a riverbank, leaving footprints
Artistic reconstruction of the Tyrants Aisle dinosaur tracksite, 72 million years ago, showing a small herd of hadrosaurs being stalked by a lone tyrannosaur. Credit: José Vitor Silva.
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