If you could ask the previous owner if s/he was spayed or neutered? A lot of aggression issues come from not being spayed or neutered.

I agree about asking if the bunny is fixed. But also what are you doing with her handling wise? If she is fixed odds are she’s being aggressive out of fear.

You really shouldn’t be handling her if she’s so new, especially with kids, I know they like to pick up the cuddly bunny. Bunnies aren’t cuddly, they don’t really like being handled. So picking her up unless it’s an emergency is a big no. Trying to cuddle her like a cat or a dog would be is a big no go as well. If you’re trying to bond, do it on the ground at her level and don’t force anything. Let her come to you. Honestly the best thing you can do is sit and read a book or watch a movie, and don’t touch her. Pretend like she’s not there. Eventually her natural curiosity will take over and she’ll start exploring you. You can ask her if she wants to be pet by extending your hand palm down and if she bows her head you can give her a few pets, but not too many so you don’t spook her. Some bunnies can take a few months to a year to warm up and feel safe in their environment. So be patient and give it time.

Females are also pretty territorial. So if you have to do any cleaning or putting her food down, do it when she’s not in her pen. She’s more likely to nip at you and lunge in their.

Make sure you take her to a bunny-savvy vet. Especially if a spay needs to be performed, only a bunny-savvy vet will be able to do it. They’re also known as exotics vets.

Nips are totally normal Nips and booping are how they communicate. Usually it means they want food/attention or even asking you to get out of the way.