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.
A small dog (such as a toy poodle, terrier, chihuahua, etc.) isn't considered geriatric until much later than a larger breed-maybe 10 to 12 years old, and the largest breeds are senior citizens at 5 or 6 years of age. Most vets, though, consider a dog 7 or 8 years or older to be a senior citizen.