The original post: /r/damnthatsinteresting by /u/Giwargis_Sahada on 2024-10-12 04:48:15.

Original Title: Dogs have a facial muscle (levator anguli oculi medialis) that allows them to raise their inner eyebrows, making their expressions more readable to humans. Their large, rounded eyes trigger a nurturing response, much like how people react to babies. These traits distinguish them from wolves.