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NOVA

Mammal Origins #S53E04

7.0
56m 2026 78
NOVA S53 E04 1974

Mammal Origins

NOVA  ·  Season 53, Episode 4

Uncover the surprising ancient origins of mammals, a story that began long before the dinosaurs' reign. Surveying Earth's tumultuous past reveals how some of our earliest ancestors, the therapsids – creatures that looked like reptiles but were starting to develop mammalian traits – survived multiple global catastrophes. Through remarkable adaptations like burrowing and the emergence of warm-bloodedness, they forged a lineage that persevered against all odds. Fascinating fossil clues and cutting-edge science reveal how a small, resilient group of animals faced extinction events, outlived giants, and ultimately gave rise to the diverse world of mammals we know today, including us.


Episode 4 of Season 53 from NOVA — available to stream in HD on any device.

Released
03 Mar, 1974
Quality
1080p 720p 540p 480p
Audio
English English Subtitle
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