7.3

NOVA•Season 53•Episode 4

Mammal Origins

7.3/10 · 37 votesFeb 11, 202654 min

Ranked #12 of 13 in Season 53•−0.4 vs season avg

Discussion

The surprising story of mammal evolution begins long before the age of dinosaurs. Witness how some of our prehistoric mammal relatives survived global catastrophes, defying extinction and evolving into the vast array of mammals we know today – including us.

Previous episodeE3 · Can Dogs Talk?Next episodeE5 · Stone Age Temple Mystery

Seasons53

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Season 53 Episodes14

E1 7.3

Asteroids: Spark of Life?

E2 7.3

Angkor: Hidden Jungle Empire

E3 7.6

Can Dogs Talk?

E4 7.3Now viewing

Mammal Origins

E5 7.2

Stone Age Temple Mystery

E6 7.7

Return to the Moon

E7 7.8

Rain Bombs

E8 7.5

Athens: Birth of Democracy

E9 8.0

The Battle to Breathe

E10 7.8

Knowledge Keepers

E11 8.4

Stone Age Masterpiece

E12 8.2

Space Wars

E13 7.8

Evolution: Brain Power

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E14

Evolution: Need to Feed

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Episode Summary

"Mammal Origins" is episode 4 of NOVA season 53. It scored 7.3/10 from 37 votes, ranking #12 of 13 episodes this season (season average 7.7). It aired on February 11, 2026.

Next: E5 · Stone Age Temple Mystery Best of Season 53