There are many possible reasons why dogs suck on dolls. Here are some possible reasons: 1. Stress relief: Dogs may suck on dolls to relieve stress and uneasiness, just like humans use some methods to relieve stress. . 2. Toy exploration: Dogs may become interested in toys and want to explore and understand their texture, taste, etc. 3. Chewing needs: Dogs may need to chew things to relieve oral discomfort, and sucking dolls becomes a natural choice. 4. Understand the world: Dogs may view the doll as a communication tool and try to understand their relationship with humans.
In short, the reasons why dogs suck dolls may be various and need to be analyzed based on the specific situation. If you notice that your dog is behaving abnormally or you are worried that it will swallow the doll, it is recommended to consult a veterinarian or a professional dog trainer promptly.