Sadly, this is the very reason we are losing ALOT of animals through the illegal pet trade. They are not designed to be domesticated, domestication has evolved over thousands of years within certain species. This means domestication for this species would take a VERY long time. You sadly cannot contain this animal to your house and expect it to firstly be comfortable within the environment or even to survive. Captivity in terms of Zoos aim to replicate its environment, diet and natural behaviour which they are now able to do and keep these animals living comfortably and as I have written are breeding successfully. Sadly animals will and always be at risk of extinction whilst the human population drastically increases every year.