Living with dogs helped humans evolve by providing defense, improving sleep quality, and allowing more time for cognitive innovation.

“I've heard that this idea of like specifically just having defense like just a sentry like having a a guard dog or like a watchdog helps human beings like sleep better. It gives like more free time and all of these things ultimately create more innovation.”

The domestication of dogs has not altered human biology, but it has profoundly shaped human social evolution.

“I don't think we've had enough time to like fully co-evolve with them in that sense. Like we didn't it didn't affect our evolution that much, but our social evolution for sure.”