We’re beginning to find out more about how animals that don’t really “think” much can keep track of numbers, when needed.
There is a classical proof of God’s existence that uses universal concepts such as mathematics, proposed most prominently by St. Augustine.
Some test fish learned how to how to get food pellets but the difficulty, as so often, lies with interpretation.
Can you be bald in one universe and fully haired in another? Can you have two eyeballs in this universe and three in another? The answer is no.
If you’ve ever tuned a violin, you’ll know that the arrangement of the fine tuners on the tailpiece, once you’re done, looks arbitrary.