Could Dinosaurs Have Been Killed By Aliens?

Dinosaurs once ruled the world, and scifi often speculates they may have been a technological civilization that was wiped out. Is there even a small chance this is true, and if so, wiped out by what and who? And could we even tell?

The Silurian Hypothesis: https://youtu.be/nxf0nE2zGpc

Produced, Written & Narrated by: Isaac Arthur
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator