What is the fine-grained topic of the following text: The Story of a Seagull and the Cat Who Taught Her to Fly is a short book with a big message: through his tale of a group of cats who work together to raise an orphaned seagull, Sepúlveda delivers a passionate plea for tolerance, solidarity and respect for the environment. Only return the topic.
Tolerance, solidarity, and environmental respect in "The Story of a Seagull and the Cat Who Taught Her to Fly".