Gandalf is an Immortal Angelic being of the race of the Ainur , there are two types of the Ainur , the Valar and the Maiar which , the Valar are the greater Ainu , the Maiar are the lesser Ainu , Gandalf is a Maia , The Valar have their own groups of the Maiar , Gandalf 's name in Valinor was Olorin where the vast majority of the Ainur are inhabited ...
A dog is considered a puppy until they are about 2 years old. Many people say one year old but a dog is not done developing by 1 year of age. It also depends on the breed of dog. Smaller breeds are done developing sooner where as large breeds take at least a year more.
Puppies grow up very quickly into adult dogs. In between the puppy and adult stages is a rebellious adolescent phase where puppies require almost constant supervision. Depending on the breed, by the time puppies are one year old, they are considered adult dogs. Some breeds of dogs take longer to mature out of their adolescent phase than others. Less than one year will be spent in cute, cuddly puppy stage, while the next ten to 15 years you will be living with the adult dog.