[deleted by user]

That's because a large majority of big cats aren't social, the most they would do is tolerate each other's presence other than that they are simply built to wrestle and assassinate, also canines sort of have to form packs as they can't wrestle and assassinate, they don't have the necessary muscles, claws, and front paws to do so but what they do have is great endurance and a wicked bite force that the pack will use to basically bleed the animal out and bring it down.

To put it blankly, mountain lions, bobcats, and lynx's don't find it necessary and even if they did, they wouldn't have the proper knowledge and personalities for it, whereas canines do it because they do have proper knowledge and personalities of being social and actually need it to survive.

It could just be my brain making shit up again but i clearly remember seeing a documentary about how a mountain lion population in USA is recuperating in recent years and for the first time there have been records of mountain lions displaying pack-like behaviour. The point was that one of the reasons mountain lions "dont form packs" is because humans have killed so many of them that there simply aren't enough of them around to form a solid pack. I hope im not making shit up but sorry if i am