A puppy is a young dog, typically less than one year old. Puppies are known for their playful behavior, curiosity, and rapid growth. They are often born in litters and rely on their mother for nourishment and care during the first few weeks of life. Puppies undergo a critical socialization period, where they learn important skills and behaviors from their environment and interactions with other animals and humans. This stage is essential for their development into well-adjusted adult dogs. Proper training and socialization can help puppies grow into friendly and obedient pets, contributing to a positive relationship with their owners.