We know that Harry's Patronus is a stag like his father and it's amusing to note that Hermione Granger's fierce protector is a hairy otter, but I join the user who said "I would love to know what ...
Hermione's Patronus is an otter, an incredibly intelligent animal that is fitting to her character. Perhaps unsurprisingly, Hermione Granger had a fully formed Patronus the moment she mastered ...