Iguanas
Iguanas are omnivorous lizards characterized by their long green tails. They show little to no interest in players of Minecraft Pocket Edition. Most of the time, they will simply run away from you. However, iguanas are predators, so it’s wise to keep an eye on your small pets. You can attempt to tame an iguana, but this is nearly impossible as they tend to flee constantly. Interested? Then add iguanas by downloading the mod “Iguanas” for Minecraft PE.
How does it work?
Iguanas can be found in most locations within MCPE, as they serve as a replacement for creepers. Naturally, they fear players and will always try to escape, even if tamed. They only pose a threat if you attack them first. 
Being omnivores, they hunt rabbits and other small creatures.
Taming an iguana in Minecraft PE is not possible unless you catch it first. To tame an iguana, you need to confine it in a small area. Use melon to tame it.
- iOS / Android: While holding a melon, long press on the iguana, then select Tame
- Windows 10: To tame the iguana, right-click on it while holding a melon
A tamed iguana will follow you throughout the world of Minecraft Pocket Edition. To heal it, feed it watermelon, potatoes, carrots, or apples.
If a hostile mob attacks you, the iguana will defend you at all costs. 
Installing Iguanas (.mcaddon)
- Download the mod labeled “.mcpack” below.
- Run the downloaded file to import the addon/resource pack into MCPE.
- Open Minecraft Pocket Edition and go to world settings.
- Set the imported packs for the world:
— Resource Packs.
— Addons. - Select the imported resource/addon packs in each section.
- It’s recommended to restart the game client Minecraft PE afterward.
- Launch Minecraft Pocket Edition, enter the previously configured world MCPE, and enjoy the addon!
Installing Iguanas (.zip)
- Download the mod below.
- Extract two folders from the archive.
- Move the folder “iguana behavior” to the directory /games/com.mojang/behavior_packs/
- Move the folder “iguana addon resource pack” to the directory /games/com.mojang/resource_packs/
- Launch Minecraft Pocket Edition.
- Create a new world or edit an existing one.
- Assign the selected world with the resource pack and addon that you moved earlier to the resource_packs and behavior_packs folders.
- Done! Restart Minecraft PE and enjoy playing!