Living Through Earth's Deadliest Extinctions

What If: Science, Theory, and Possibilities · Oct 8, 2026 · 1h 43m

Enjoying this video? Dive deeper into science and discovery with Popular Science, a free streaming channel offering more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences.

Support us on Patreon.

Check out our other channels:

How to Survive

Animalogic

Aperture

T-shirts and merch: What If Store

What If is a mini-documentary web series exploring hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space, and chance while breaking down complex subjects in a fun and entertaining way.

Contact us…