This Minecraft Pocket Edition 1.17 Update brought players a lot of changes related to the biomes of the virtual world.
Minecraft 1.17: Caves & Cliffs Update
Minecraft version 1.17 Caves & Cliffs players can visit unique Dripstone and Lush caves to find different plants and even animals inside. For example, axolotls live there. Users can also get copper ore in new structures.
Players can meet goats and use their horns. Usually these animals spawn on the tops of mountains.