Beneath Yellowstone's beauty, scientists uncover mammoths, dinosaurs, and a restless supervolcano.
This season expands the scientific exploration of Greater Yellowstone, from mammoth excavations and the first Americans to triceratops fossils and the shifting path of the volcanic hotspot below. Each episode follows evidence, debate, and discovery across deep time, revealing why this landscape still shapes how scientists understand extinction, survival, and Earth's changing forces.
Episode guide
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Frequently asked questions
Yes. Every plan unlocks the full library — including all Curiosity Originals like Ancient Yellowstone (Season 2) — in up to 4K, ad-free, on all your devices.
Ancient Yellowstone (Season 2) is a Curiosity Original, exclusive to Curiosity Stream.
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.