If you want a best friend for life, at a young age, identify an individual and spend the next 50 years working hard to navigate a complex web of interpersonal dynamics... or get a dog. With a little bit of food and a lot of playing fetch, a dog will be the most loyal companion you will ever have. Your furry friend will always be there to comfort you, inspire you, motivate you, protect you, and get you out of bed in the morning (and sometimes the middle of the night, bladder depending). In turn, for its unyielding love and devotion you feed, bathe, groom, shelter, protect and otherwise worship your dog (by making it silly costumes which it will wear for 10 minutes and then happily chew up). It's a win-win situation.