Elephant is a great mod that adds the ability to control a real elephant in GTA 5. The elephant model is taken from Far Cry 4.
Installation: 1. Find the x64e.rpf file in the root folder and copy it to the mods folder; 2. In the file that you copied, go to models/cdimages/componentpeds_a_c.rpf; 3. Replace files with OpenIV; 4. Use a trainer to spawn; 5. Enjoy.