Dog!!! Hope you can give me suggestions. Thank you! The video shows some advantage of a dog. And you can always be happy through breeding a dog. Dogs share 99% of their DNA with wolves. However, dogs are much more friendly to other dogs and humans than wolves. Many people get much happiness from dogs. Especially someone is lonely, old, or depressed. And looking at your dog’s eyes can increase happy hormones. Having a dog can even lessen heart stroke and lower blood pressure. They are very loyal. In Japan, a dog waited nine years for its deceased owner. And Japanese honored it for setting a bronze statue of it. And you can always see rescue dogs in some natural disaster spot to find missing people. Having a dog can be happier. Just remember adopt it not buy it from pet store.