Right
@kiera. On trying to keep the multiple threads to one that follows on:
You mentioned your new boar is biting. It's a situation that you are finding difficult. You mention he keeps going for everyone.
You have had advice on giving him chance to settle and getting him checked out at a vet, and to read the information on biting.
How about some background information.
Does anything lead up to this? (teeth chattering, posturing etc)
Does he bite when handled?
Does he bite at any other time?
Are they proper bites or 'tweaks'?
Does he show any other aggressive signs?
Does he show fear?
Any other behaviour that concerns you?
When did this start?
Is it when you catch him for handling, or is he reacting to something that is happening to him at the time?
It's not that you should feel the need to answer all the questions but any information could help with figuring out what is going on here.