The Cretaceous-Palaeogene Mass Extinction: What Do We Really Know?
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57:12
Permian-Triassic Mayhem: Earth's Largest Mass Extinction
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44:39
Over the Heads of Dinosaurs: Pterosaurs
![](https://i.ytimg.com/vi/v9KCdtz64H8/mqdefault.jpg)
48:28
Theropod Dinosaurs of the Nemegt Formation (Upper Cretaceous) of Mongolia
![](https://i.ytimg.com/vi/tRPu5u_Pizk/mqdefault.jpg)
33:51
The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs — HHMI BioInteractive Video
![](https://i.ytimg.com/vi/AqLPACPAcmw/mqdefault.jpg)
47:36
Insights from China on the Dinosaurian Origin of Birds
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41:22
The Ediacaran Period: Glimpses of the Earth's Earliest Animals
![](https://i.ytimg.com/vi/YOOmdA6w-Vs/mqdefault.jpg)
38:08
How Did Birds Get Their Wings? Feathered Ornithomimids from Alberta and the Origin of Wings
![](https://i.ytimg.com/vi/GyWu4MZeaGs/mqdefault.jpg)
39:29