Dogs can smell fear, but it's not the only emotion they can detect.
Dogs can see some colors, but not as many as humans.
Dogs tilt their heads to better understand what they're hearing.
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Dogs bark for a variety of reasons, including to communicate, express excitement, or warn of danger.
A wagging tail doesn't always mean a dog is happy; it can also indicate anxiety or aggression.
Dogs lick for a variety of reasons, including to show affection, communicate, or groom themselves.
Dogs have a strong sense of smell and can detect certain medical conditions, such as low blood sugar or seizures.
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