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Eons
When Mammals Only Went Out At Night
Season 4
Episode 10
For decades, scientists believed dinosaurs were diurnal and tiny mammals were nocturnal. But as researchers have uncovered more mammalian fossils and studied the biology of different dinosaur species, they’ve found some surprising results.
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10:18
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12:07
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11:57
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9:41
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8:42
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7:09
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8:58
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9:05
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