Yes - dogs make a relaxed open-mouth 'smile' that researchers call a 'play face' or 'submissive grin.' It's a social signal communicating relaxed, non-threatening intent,...

Dogs produce tears for eye lubrication but do not cry emotionally the way humans do. However, a Murata 2022 study found dog tear production DOES...

Yes - veterinary orthodontics is a real specialty. Dogs sometimes need braces or inclined-plane appliances to correct malocclusions where teeth are causing pain or soft-tissue...

The classic fishy smell is leaked anal gland fluid - small scent glands on either side of the anus that normally express during pooping. Other...

Dogs don’t typically get classic human Group A strep throat (Streptococcus pyogenes), but they CAN carry it asymptomatically and re-infect a human who keeps testing...