Where can I watch “Life” Season 1 Episode 3 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

Do I need to watch earlier episodes before “Mammals”?

Watching earlier episodes in season 1 helps you follow the plot and character arcs leading into this episode.

Watch Life Season 1 Episode 3 Online

“Mammals” — Watch "Life" Season 1 Episode 3 online in HD for free. Check streaming providers, cast, and episode details.

Oct 25, 2009 Season 1 Episode 3 59 min TV-G

8.5 ★ ★ ★ ★ ★

14 votes

Life Season 1

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Season 1 Episode 3 — Aired on Oct 25, 2009 • runs about 59 minutes.

Notable cast/guest names in this episode include David Attenborough.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Life Season 1 Episode 3 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

How mammals dominate the planet through having warm blood and by caring for their young.

Stills

Cast

David Attenborough

as Self - Narrator (voice)

Episodes – Season 1

Reptiles and Amphibians

Creatures of the Deep

Trailer / clip

There�s no trailer available for this series right now.