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When Dinosaurs Ruled the Arctic Circle

5m 52s

Pachyrhinosaurus and Edmontosaurus - undertook an epic migration every year to reach the fertile grounds of the northern latitudes in summertime. This was far from an easy task. Deadly predators lurked nearby looking to pick off weaker members of this giant herd. But evidence is starting to suggest that these two maybe have used their complementary strengths to fend off predators and communicate.

Aired: 06/14/25
Extras
Staying close to the herd is the only chance for baby Pachyrhinosaurus to survive danger.
Discover the story of Lusotitan, one of the largest dinosaurs ever.
An injured Lusotitan lies on the beach, vulnerable to attack from the deadly Torvosaurus.
Travel back in time to the dangerous journey of the Pachyrhinosaurus, where survival is at stake.
Travel back in time to the dangerous journey of the Pachyrhinosaurus, where survival is at stake.
A fight breaks out amongst the mega herd of Pachyrhinosaurus gathering to migrate north
Discover the story of Lusotitan, one of the largest dinosaurs ever.
In an attempt to initiate a courtship dance, a male Lusotitan puts his best foot forward.
A young Albertosaurus, a relative of T. Rex, earns her place in a fierce hunting pack.
Surviving in a cave full of Albertosaurus can be a lot easier if you form a partnership.