I don't think it is a chupacabra. I believe it's a Xolo dog.
Edit:
The Xoloitzcuintli also spelled Xoloitzcuintle, is more commonly known as the Mexican Hairless, or Xolo. It resembles a robust Manchester Terrier. The Xolo is one of the worlds oldest and rarest breeds dating back over 3,000 years. Artifacts and clay pottery of this ancient breed has been found in the tombs of Colima, Mayan, Aztec Indians. They were highly prized for their loyalty, intelligence, curative and mystical powers.
The Xolo of today remains virtually unchanged. Ancestors of the Aztec Indians brought hairless dogs called "Biche" (meaning naked) with them when they arrived in Mexico from Asia. The Aztecs enjoyed the hairless dogs as pets, but also found them useful as bed warmers, food, and sacrificial offerings. The toasty warm body heat of the toy hairless dogs made them in demand as ancient hot-water bottles, relieving stomach pains and rheumatic joints, or simply for warming beds during cold nights. Extreme cold made for a "Three Dog Night." The breed's palliative qualities magnified until its "healing powers" became a cure-all.
Clay figures and remains of these dogs, dating from 300 to 900 AD, have been found in burial sites, where dogs guided the souls to a happy afterlife and furnished nourishment until it was reached. The Xolo is native to Mexico and is widespread throughout South America. It is named after the ancient dog Xoloti. At the end of the nineteenth century, it became completely a companion dog. The warmth from these dogs is still enjoyed today, particularly by the elderly. The Xolo is no longer in danger of Extinction and is not in danger do to lack of interest. The Xolo today is being acknowledged with increased interest, for there companion ship, loyalty, cleanliness and flexibility to do it all! They make great companions, show, agility, obedience, therapy and service dogs.
source:Xoloitzcuintle, Mexican Hairless, Xoloitzcuintli, Xolo
It's the time for this dead dog to go to a happy afterlife.