Generally, medium-sized dogs weigh between 15 and 30 kg and measure between 45 and 60 centimeters at the withers. There is no precise universal definition of the medium size of a dog. However, it is important to note that a dog's size can vary individually depending on its breed, upbringing, and activity level.
Medium-sized dogs are often sought after for their versatility, as they are generally large enough to participate in sporting and outdoor activities while being compact enough to suit apartment living or more confined spaces.
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