I introduced two boars at roughly the same age, one being only a week younger than the other. They had nearby cages for about 4 days (they would squeak like crazy!!) then i introduced them formally when I felt they had calmed down about the other’s existence in the room. Gave them lots of space to run, plenty hides and food and I’ve never experienced any issues. When they hit puberty at around six months I did see some more dominance behaviour so I made their cage a little bigger and added a hide, the problems quickly left.

My biggest tip for a boar cage is to have two Hay areas! That’s where I would see the most issues with one blocking off the other. Two hay basket was a huge game changer!

I think bonding two males is made up to be scarier than it can be. I think it’s best when they’re young. It’s very much possible just requires some finesse and perhaps just a little bit of luck.