You can usually differentiate between male and female dogs by:
1. Observe the appearance characteristics: Male dogs are usually larger and stockier than female dogs. Although this is just a general observation, since dogs come in a variety of sizes and breeds, appearance is not 100% sure of gender.
2. Observe the genitals: Male dogs usually have an obvious penis, located between the tail and abdomen. This is a distinguishing characteristic of male dogs. The female dog’s genitals have no obvious exposed organs.
3. Observe behavior and personality: Although it’s not an absolute rule, male dogs tend to display greater dominance, territoriality, and sexual behavior. Female dogs may be in heat at certain times.
The most accurate way is to have an examination by a veterinarian or professional breeder, who will determine your dog's gender by carefully observing his external features and genitals. If you're unsure about your dog's gender, it's best to seek professional advice.
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