Chupacabra: Unknown Canids of America (and beyond?)

In 1995, strange animal deaths on the island country of Puerto Rico were blamed on a monster that many claimed to have encountered; this beast was called the Chupacabras, Spanish for "goat sucker," because of it's vampiric killing techniques. After these incidents had been reported on television worldwide, animal deaths in other countries started to be blamed both by witnesses and by news agencies on "chupacabra" as well, despite obvious differences in both the remains left and the creatures blamed... the word 'chupacabra' had simply become a buzzword meaning 'unknown killer of small livestock,' and it helped sell news stories. In these new 'reports,' the name Chupacabras became 'Chupacabra' -- losing the 's' on the end -- because of an English assumption that it represented a plural, though the original Spanish is the correct spelling for both a single or group of Chupacabras.

        The majority of these new reports come from Mexico and the Southern portion of the United States -- mostly Texas -- and the creatures being sighted in these areas are said to be distinctly dog-like in appearance. Even though early reports described these new "Chupacabra" as weird and vampiric relations to the Puerto Rico monster, reports now describe animals that seem to be scavengers and opportunistic predators, willing to get an easy meal from a farm. Being that many dead bodies, photos, and films now exist of the American 'Chupacabra', the arguements at this point are no longer about whether or not the creatures are supernatural (despite what news agencies continue to report)... the real arguments are about whether these specimens and reports represent a new, unknown animal species or if the evidence merely shows a problem with mange. As Curiosities, rather than Anomalies, I will not be tracking down all existing cases of these matters (it's a convoluted mess anyways), but will focus on singular and unusual cases that may either help clear things up or further muddy the waters.