TIL That since domestication dogs' eyes have changed. Dogs now have eye muscles that make them more expressive and infant-like. These same muscles are absent in wolves their closest relative.
Upvoted: TIL, That since domestication, dogs' eyes have changed. Dogs now have eye muscles that make them more expressive and infant-like. These same muscles are absent in wolves, their closest relative. via /r/todayilearned https://ift.tt/39Z59UH