Inside a frozen mountain, scientists race to save humanity's hidden allies.
Discover why the microbes living in and on our bodies are essential to health, and why scientists fear many could vanish within decades. This episode follows the bold plan for a human microbiota vault, from remote sample collection to cold-storage preservation, revealing a high-stakes effort that could shape future medicine.
Love Noah's Ark for the Humans? It’s just the start.
Join now to unlock the whole library — thousands of award-winning documentaries beyond Noah's Ark for the Humans, from the deep ocean to deep space.
Trending Now
- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Pick the plan that’s right for you.
Flexible plans, no contracts.
Thousands of documentaries across nature, history, space, and science.
- Watch in 4K on all your devices
- Download and watch offline
- Stream ad-free — cancel anytime
Thousands of documentaries across nature, history, space, and science.
- Up to 4K
- Offline downloads
- Ad-free
Frequently asked questions
Yes. Every plan unlocks the full library — including all Curiosity Originals like Noah's Ark for the Humans — in up to 4K, ad-free, on all your devices.
Noah's Ark for the Humans is a Curiosity Original, exclusive to Curiosity Stream. Plans start at $4.17/month.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.