Over the past 15,000 years, humans and dogs have shared nearly five thousand canine generations of coevolution. That’s enough to change an animal from a predator you fear to a fluffy animal you can carry in your hand luggage.
It’s easy to imagine how this started. Wolves that tolerated early human camps gained food and protection, and gradually evolved into dogs exquisitely tuned to us, capable of following our gaze, reading our gestures, and even interpreting our expressions.
A new medical study suggests that this ancient relationship may still influence our biology.1
On February 17th, 2026, researchers at the Freie…
