Have a look at this:
Btw. the bug where sharks will attack you even if you are inside a boat is fixed for 1.29. Moreover, animals will attack anything you stand on if they can’t reach you. So if you’re mad, jump on a rhino and watch wolves get owned as they bite it and get ripped to shreds :-)
Of course the rhino will make a pancake of you after all the wolves are dead, but maybe you can somehow get away with it…
It’s a way to get animals which normally would not attack each other to do so.