Dogs can get similar diseases to humans, aiding medical research and clinical trials.
They can also detect diseases in humans like cancer, diabetes, and epilepsy through their keen sense of smell.
Some dog breeds are as smart as 2-year-old children, while others prioritize hunting instincts over intelligence.
Contrary to the myth, dogs' mouths aren't cleaner than humans', and they can carry pathogens harmful to humans.
Dogs can feel envy, as shown when they see other dogs getting treats for tricks they performed unrewarded.
Those guilty-looking eyes when scolded are just a reaction, not actual guilt.
Obedient, docile breeds tend to live longer lives than bold, aggressive ones.
Dogs exhibit incredible diversity in body shape, allowing genetic studies.
Dogs have had spiritual roles in various ancient cultures.
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