While it may seem weird to call a nonhuman animal a "person," Argentina has done just that - in their country, chimpanzees and orangutans enjoy the benefits of legal personhood.
In America we like to think of "human" and "person" as equivalent terms, but that is demonstrably not the case; at least not legally.
So... Should other animals be considered people?
Vote: https://twitter.com/SpeciesPodcast/status/1088911107224416257
Bibliography: https://docs.google.com/document/d/1PtGd9rO9G943JDw2e01PlEHlLek0fj6JakkTuYwo9Ao/edit?usp=sharing