Cats progress through a number of life stages in their lifetime. As a cat guardian, learning how they change physically and behaviorally will help you to provide the right level of care at every stage of development. Remaining ignorant of these stages can mean you provide the wrong care, making natural changes in a cat's life even harder than they can already be. For example, we can misdiagnose normal signs of aging for disease and harm them with improper treatment. Understanding a cat's…