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Montana, USA- 65,5 million years B.C. In the last days of the dinosaurs' hegemony over the world, a female Tyrannosaurus struggles to reproduce in a world poisoned by volcanic gases, which has resulted in dwindling prey numbers.
Did You Know?
Some scientists argue that Torosaurus was actually not a distinct dinosaur, but simply the adult form of Triceratops, meaning that the episode's depiction of juvenile Torosaurus would be erroneous. However this theory still hasn't been widely accepted (since for one, Torosaurus was actually smaller), and of course hasn't been proposed at the time of this show's production, so it doesn't count as an error. See more
The episode ends with time fast-forwarding from the Cretaceous period to a modern day landscape. When we start, we are in ancient North America, but as we arrive on modern Earth, we are suddenly on an African savanna. See more
There are still islands of greenery between the barren lava flows. In the warm moist climate of the late Cretaceous period, the vegetation has transformed.