Mountains++ Map
To be honest, the mountains in Minecraft lack a variety of wildlife. While exploring, it often feels like you’re in barren landscapes. The mod “Mountains++ (Горы)” addresses this issue by introducing new creatures, such as the fire dragon!
This mod does not replace any existing mobs; all newly added animals are independent entities.
Fire dragons are astonishingly powerful beings capable of obliterating everything in their path. They can exhibit both calm and aggressive behaviors. A peaceful dragon can be tamed using raw salmon. Beware of the hostile dragon; encountering one gives you a 50% chance of being blown up. Just kidding, it’s actually a 100% chance! To turn it into a friendly creature, you must tame it first. Once tamed, you’ll be able to ride on its back. To saddle a dragon, open your inventory and place a saddle in the first slot, a chest in the second, and any horse armor in the third.

This is a yak. You can tame it just like a donkey. In fact, they are quite similar, which means that donkey armor will also fit the yak.

What do you think a big-horned sheep does? It doesn’t do much at all. This creature simply wanders around and gets distracted by various things. It’s more of an ornament for Minecraft.
If you’ve forgotten, make sure to enable experimental gameplay.