Why don't we domesticate other animals? Like the monkey or gorilla. They are smart, we could use them to do manual labor, or just for house pets. People would not trust their children with a wolf, but most dogs are fine. So, why not a gorilla with fluffy fur, floppy ears, and a docile personality? Why not the elephant? They have been used this way for a long time, but has there ever been a breeding program to enhance their intelligence or friendliness? Seems like elephants would be great for public transportation, and environmentally friendly.