I'm still super confused and have yet to figure out how exactly the minion zoo works and how you train your minions.

the other stuff(exp, battles etc) are no longer a thing, its basically just a spot to store them now

hmm kinda weird it's still there then lol thanks for answering my curiousity though!

not all pets have stats, I would assume it's after a certain date they stopped getting stats

although you can "battle" with minioins with stats but there is no incentive other than eventually numbers go bigger its super basic, you can add abilities by clicking "Edit Minion" though I think their price to learn is set to zero lol so you can learn them all right away

and to start a battle click on the minion image though it's random, choose an ability to use repeat till one is dead then repeat whole process for more battles although win or lose your minion get xp

but like I said only thing is numbers go big

from what I heard the idea was started to be implemented at one point then abandoned and doubtful it see progress if any it wont be happening anytime soon

Thank you for making this post; I was also confused about this!