Pretty sure we are the only animals with pink rings around our mouth. It’s flipping weird.
It probably helps with verbal language understanding as humans often use mouth movements to interpret words (see McGurk effect). But I still think it’s weird.
Big pink rings.
Does your dog have a noodle ring around their mouth ?
Under the overhanging fur, yes. Mammals have lips.
I think our definition of lips is different
Are you suggesting that people with long mustaches don’t have lips?