We know that you have a soft spot for dogs. We love knowing every little detail about dogs and their breeds. However, have you ever wondered about the life-cycle of a dog? Here, we introduce you to the various stages in the life of a dog. A dog is a carnivorous member of the Canidae family. After a gestation period of around 63 days, a puppy is born. A puppy remains in the puppyhood stage for around 6-18 months. After this, they transition into the puberty or adolescent stage. They remain in this stage for a period of 6-18 months. Next, they enter adulthood and remain there for around 1-3 years of age. Finally, they become a senior dog at around six years of age and can reproduce. The following is a life cycle of a dog coloring pages resource, which the kids would love to check out. In the free printable picture, we see a diagram that briefly explains the various stages of a dog’s life. The picture would make the kids read about the life-cycle of other animals as well.