Many have already become bored with those animals in the MCPE, which can be tamed. Even the wolves, who once greatly surprised, now have become boring. So, it's time to change something during the game.
Download mod Dragons for free on Android For example, you can install the Dragons mod, with which you can tame and grow a dragon. But this is the most dangerous creature. You can watch it from the smallest sizes until the moment when it grows really huge.