Determining whether a dog is still a puppy or has reached adulthood can depend on several factors, including physical size and appearance, behavior, and developmental milestones. u003cbru003eu003cbru003eOne of the most obvious signs that a dog is still a puppy is its physical appearance. u003cbru003eu003cbru003ePuppies are typically smaller in size and have distinct physical features such as floppy ears, a rounded face, and a soft, fluffy coat. u003cbru003eu003cbru003eAs they grow and mature, their physical appearance will change, and they will begin to look more like adult dogs.u003cbru003eu003cbru003eAnother way to tell if a dog is still a puppy is by their behavior. u003cbru003eu003cbru003ePuppies are known for being energetic, curious, and often mischievous, whereas adult dogs are typically more settled and well-behaved. u003cbru003eu003cbru003eHowever, individual dogs can vary widely in their behavior, so it's important to consider other factors as well. u003cbru003eu003cbru003eAdditionally, if your dog is still reaching important developmental milestones, such as teething or being house-trained, it may still be considered a puppy. u003cbru003eu003cbru003eUltimately, the best way to determine whether your dog is still a puppy is to consult with a veterinarian or professional dog trainer, who can provide guidance based on your dog's breed, age, and individual needs.