Its gross, its disgusting and dogs do it? Why? Dr. Mustache explains the science behind this foul habit. Subscribe to The Pet Collective: full.sc Facebook: www.facebook.com Twitter: twitter.com Pinterest: pinterest.com Google+: gplus.to/thepetcollective Coprophagia is common in 50% of dogs. But why? Well it has something to do with biology, behavior and evolution. Matt Johnson – Dr. Mustache Kate Reynolds – Producer/Editor Matt Pagourgis – Producer Atomic © Fontalicious – Derivative Versions © Font Bros. www.fontbros.com dung, poo, poop, feces, waste, gross, eating, habits, evolution, biology, science, eat, diet, taste, why, puppy, dog, cat, scavenger, study, pups, defecate, defecating, train, shit, explore, habit, pet, collective, dr mustache, Doctor, mustache, tpc,