Wolves can be tamed instantly with a few bones, Polar Bears require the effort to find a cub (they don't breed anyway), kill it's mother, tame it, then raise.
Adult donkeys can be tamed. With an empty hand, mount it repeatedly; when it shows hearts and no longer bucks the player, it is tamed. It is necessary to tame a.
Llamas are tamed similarly to Horses, Donkeys, and Mules by trying to ride them repeatedly. However, where they differ is you can not give them a Saddle to.
To name a tamed animal, use a name tag. You can obtain a name tag by trading with villagers or by looking in chests in any generated structure. Take this to an.