Earlier quoted context omitted.
Do animals have friends, enemies, cliques? Yes. Do animals play practical jokes on each other? Yes. I've seen all of these in cows.
Cows are just big dogs
I did IT work on a farm for a few weeks and was there 3-5 days a week. The cows were far more active than any other animal I saw. They clearly liked each other and had friends and non-friends in the group. They would run and walk dozens and dozens of miles per day and a horse would move 1/4 mile in total over the course of an entire day.