It depends. There are dog diaries that are fictional works created just for entertainment purposes. However, there are also those that draw inspiration from real - life dog experiences. Some dog owners write about their pets' lives in a diary - like format, and these can be considered true - story - based dog diaries. So, not all dog diaries are based on true stories, but many are.
No. While some dog diaries are based on real - life experiences with dogs, there are also fictional dog diaries. Some authors create fictional tales about dogs for various reasons like to tell a moral story or just for pure creativity. So, it's not the case that all dog diaries are rooted in truth.
It's not a true story. Chernobyl Diaries is more of a fictional imagining that incorporates elements of the real Chernobyl location and its history to create a thrilling and scary tale for the audience.