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- Diverse Breeds: There are over 340 dog breeds recognized worldwide, each with unique traits, from the tiny Chihuahua to the massive Great Dane, shaped by centuries of selective breeding for specific roles like hunting, herding, or companionship.
- Exceptional Sense of Smell: Dogs have an olfactory sense 10,000 to 100,000 times more sensitive than humans, with up to 300 million scent receptors compared to our 6 million, making them expert trackers and detectors.
- Social Bonding: Dogs are one of the first animals domesticated by humans, with evidence dating back at least 20,000–40,000 years, and they form strong emotional bonds with humans, often reading our facial expressions and emotions.
- Communication Skills: Dogs use a combination of barks, whines, growls, and body language (like tail wagging or ear positioning) to communicate, with studies showing they can understand up to 250 words and gestures in trained cases.
- Health Benefits for Humans: Owning a dog can reduce stress, lower blood pressure, and increase physical activity, with studies showing dog owners often have better mental health and live longer than non-owners.