This video is best viewed while lying on your back, at least that's what all these dogs think! The mystery of the upside down dog will boggle the minds of scientists for eternity, but for now we can just enjoy these silly pups and their upside down Antics. Special thanks to Graham at upsidedowndogs.com Thanks to: Docbfine, Dzether, 5MZ, Vballwing, Walkinthebark, rhonjon08, IrishKC, kewpie88, tedmault, stonerchick, and www.upsidedowndogs.com for all the great photos and videos!