Last Updated：2025/11/21
Because the most common calculation uses a ratio of seven human years to one dog year, a four- or five-year-old dog is roughly as mature as a 28–30- or 33–35-year-old person.
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Because the most common calculation uses a ratio of seven human years to one dog year, a four- or five-year-old dog is roughly as mature as a 28–30- or 33–35-year-old person.
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