Iguanas to Minecraft

Iguanas are animals that could be a semi neutral pets unless you hit it, and can be found in the deserts, eating fruits, vegetables, and flowers. Iguanas will get bored of you after 10 days of minecraft time, and leave you unless you feed it, and if you don't, it will hit you with it's spikey penetrating tail doing 5 and a half hearts damage leaving you with 5 hearts left, and are not at all loyal. Adding all of these features up, skeletons, creepers, and zombies will spawn less in the deserts because they are scared of the iguanas and run away, the Iguanas will hunt them down untill they are eliminated, including you if you kill it's pack leader.