The chupacabra or chupacabras (Spanish pronunciation: [tʃupaˈkaβɾas], literally 'goat-sucker', from Spanish: chupa, 'sucks', and cabras, 'goats') is a legendary creature, or cryptid, in the folklore of parts of the Americas. The name comes from the animal's purported vampirism—the chupacabra is said to attack and drink the blood of livestock, including goats.

Physical descriptions of the creature vary. In Puerto Rico and in Hispanic America it is generally described as a heavy creature, reptilian and alien-like, roughly the size of a small bear, and with a row of spines reaching from the neck to the base of the tail, while in the Southwestern United States it is depicted as more dog-like.

Initial sightings and accompanying descriptions first occurred in Puerto Rico in 1995. The creature has since been reported as far north as Maine, as far south as Chile, and even outside the Americas in countries like Russia and the Philippines. All of the reports are anecdotal and have been disregarded as uncorroborated or lacking evidence. Sightings in northern Mexico and the southern United States have been verified as canids afflicted by mange.

Chupacabras can be literally translated as 'goat-sucker', from chupar ('to suck') and cabras ('goats'). It is known as both chupacabras and chupacabra throughout the Americas, with the former being the original name, and the latter a regularization. The name is attributed to Puerto Rican comedian Silverio Pérez, who coined the label in 1995 while commenting on the attacks as a San Juan radio deejay.

In 1975, a series of livestock killings in the small town of Moca, Puerto Rico were attributed to el vampiro de Moca ('the vampire of Moca'). Initially, it was suspected that the killings were committed by a Satanic cult; later more killings were reported around the island, and many farms reported loss of animal life. Each of the animals was reported to have had its body bled dry through a series of small circular incisions.

The first reported attack eventually attributed to the actual chupacabras occurred in March 1995. Eight sheep were discovered dead in Puerto Rico, each with three puncture wounds in the chest area and reportedly completely drained of blood. A few months later, in August, an eyewitness named Madelyne Tolentino reported seeing the creature in the Puerto Rican town of Canóvanas, where as many as 150 farm animals and pets were reportedly killed.

Puerto Rican comedian and entrepreneur Silverio Pérez is credited with coining the term chupacabras soon after the first incidents were reported in the press. Shortly after the first reported incidents in Puerto Rico, other animal deaths were reported in other countries, such as Argentina, Bolivia, Brazil, Chile, Colombia, Dominican Republic, El Salvador, Honduras, Mexico, Nicaragua, Panama, Peru, and the United States.

In 2019 a video recorded by Mundo Ovni showed the results of a supposed attack on chickens in the Seburuquillo sector of Lares, Puerto Rico.

A five-year investigation by Benjamin Radford, documented in his 2011 book Tracking the Chupacabra, concluded that the description given by the original eyewitness in Puerto Rico, Madelyne Tolentino, was based on the creature Sil in the 1995 science-fiction horror film Species. The alien creature Sil is nearly identical to Tolentino's chupacabra eyewitness account and she had seen the movie before her report: "It was a creature that looked like the chupacabra, with spines on its back and all... The resemblance to the chupacabra was really impressive", Tolentino reported. Radford revealed that Tolentino "believed that the creatures and events she saw in Species were happening in reality in Puerto Rico at the time", and therefore concludes that "the most important chupacabra description cannot be trusted". This, Radford believes, seriously undermines the credibility of the chupacabra as a real animal.

The reports of blood-sucking by the chupacabra were never confirmed by a necropsy, the only way to conclude that the animal was drained of blood. Dr. David Morales, a Puerto Rican veterinarian with the Department of Agriculture, analyzed 300 reported victims of the chupacabra and found that they had not been bled dry.

Radford divided the chupacabra reports into two categories: the reports from Puerto Rico and Latin America, where animals were attacked and it is supposed their blood was extracted; and the reports in the United States of mammals, mostly dogs and coyotes with mange, that people call "chupacabra" due to their unusual appearance.

In 2010, University of Michigan biologist Barry O'Connor concluded that all the chupacabra reports in the United States were simply coyotes infected with the parasite Sarcoptes scabiei, whose symptoms would explain most of the features of the chupacabra: they would be left with little fur, thickened skin, and a rank odor. O'Connor theorized that the attacks on goats occurred "because these animals are greatly weakened, [so] they're going to have a hard time hunting. So they may be forced into attacking livestock because it's easier than running down a rabbit or a deer." Both dogs and coyotes can kill and not consume the prey, either because they are inexperienced, or due to injury or difficulty in killing the prey. The prey can survive the attack and die afterwards from internal bleeding or circulatory shock. The presence of two holes in the neck, corresponding with the canine teeth, are to be expected since this is the only way that most land carnivores have to catch their prey. There are reports of stray Mexican hairless dogs being mistaken for chupacabras.

The most common description of the chupacabra is that of a reptile-like creature, said to have leathery or scaly greenish-gray skin and sharp spines or quills running down its back. It is said to be approximately 3 to 4 feet (0.9 to 1.2 m) high, and stands and hops in a fashion similar to that of a kangaroo. This description was the chief one given to the few Puerto Rican reports in 1995 that claimed to have sighted the creature, with similar reports in parts of Chile and Argentina following.

Another common description of the chupacabra is of a strange breed of wild dog. This form is mostly hairless and has a pronounced spinal ridge, unusually pronounced eye sockets, fangs, and claws. This description started to appear in the early 2000s from reports trailing north from the Yucatán Peninsula, northern Mexico, and then into the United States; becoming the predominant description since. Unlike conventional predators, the chupacabra is said to drain all of the animal's blood (and sometimes organs) usually through three holes in the shape of a downwards-pointing triangle, but sometimes through only one or two holes.

The chupacabra panic first started in late 1995, Puerto Rico: farmers were mass reporting the mysterious killings of various livestock. In these reports, the farmers recalled two puncture wounds on the animal carcasses. Chupacabra killings were soon associated with a seemingly untouched animal carcass other than puncture wounds which were said to be used to suck the blood out of the victim. Reports of such killings began to spread around and eventually out of the country, reaching areas such as Mexico, Brazil, Chile, and the Southern area of the United States.

Most notably, these areas experience frequent, and extreme dry seasons; in the cases of the Puerto Rican reports of 1995 and the Mexican reports of 1996, both countries were currently experiencing or dealing with the aftermath of severe droughts. Investigations carried out in both countries at this time noted a certain dramatic violence in these killings. These environmental conditions could provide a simple explanation for the livestock killings: wild predators losing their usual prey to the drought, therefore being forced to hunt the livestock of farmers for sustenance. Thus, the same theory can be applied to many of the other 'chupacabra' attacks: that the dry weather had created a more competitive environment for native predators, leading them to prey on livestock to survive. Such an idea can also explain the increased violence in the killings; hungry and desperate predators are driven to hunt livestock to avoid starvation, causing an increase in both the number of livestock killings, and the viciousness of each one.

Evidence of such is provided in page 179 of Benjamin Radford's book, Tracking the Chupacabra: The Vampire Beast in Fact, Fiction, and Folklore. Radford's chart highlights ten significant reports of chupacabra attacks, seven of which had a carcass recovered and examined; these autopsies concluded the causes of death as various animal attacks, as displayed though the animal DNA found on the carcasses. Radford provides further evidence in pages 161-162 of his book, displaying animals who are proven to have fallen victim to regular coyote attacks; thus, explaining that it is not unusual for an animal carcass to be left uneaten while only displaying puncture wounds and/or minimal signs of attack.

The plausibility of the chupacabra's existence is also discredited by the varying descriptions of the creature. Depending on the reported sighting, the creature is described with thick skin or fur, wings or no wings, a long tail or no tail, is bat-like, dog-like, or even alien-like. Evidently, the chupacabra has a wide variety of descriptions; to the point where it is hard to believe that all the sightings are of the same creature. A very likely explanation for this phenomenon is that individuals who had heard of the newly popular chupacabra had the creature's name fresh in their mind before they happened to see a strange looking animal. They then resort to make sense of their encounter by labelling it as the recently 'discovered' monster, instead of a more realistic explanation. For example, some scientists hypothesize that what many believe to be a chupacabra is a wild or domestic dog affected by mange, a disease causing a thick buildup of skin and hair loss.

The "Ozark Howler", a large bear-like animal, is the subject of a similar legend.

The Peuchens of Chile also share similarities in their supposed habits, but instead of being dog-like they are described as winged snakes. This legend may have originated from the vampire bat, an animal endemic to the region.

In the Philippines the Sigbin shares many of the chupacabra's descriptions.

"Grunches" is a legend in New Orleans that gets its name from a lovers' lane called Grunch Road, between the Mississippi River and the Gulf of Mexico. The road was said to be inhabited by creatures called "grunches", similar in appearance to the Chupacabra.

In 2018 there were reports of suspected chupacabras in Manipur, India. Many domestic animals and poultry were killed in a manner similar to other chupacabra attacks, and several people reported that they had seen creatures. Forensic experts opined that street dogs were responsible for mass killing of domestic animals and poultry after studying the remnants of a corpse.

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• A chupacabra is referred to in the 2009 novel Drive Your Plow Over the Bones of the Dead.
• The debut album by Imani Coppola is titled Chupacabra.
• In Indigenous (2014), the chupacabra is the main antagonist.
• The myth of the chupacabra is mocked in a 2012 episode of the cartoon series South Park, titled "Jewpacabra", in which antisemitic main character Eric Cartman claims to have seen a Jewish Chupacabra that kills children on Easter.
• The chupacabra was included as one of several vinyl figurines in Cryptozoic Entertainment's Cryptkins blind box toy line in 2018. A redesigned series of figurines, including an updated chupacabra, was released in August 2020.
• The search for a chupacabra was featured in the 1997 The X-Files episode "El Mundo Gira".
• "Chupacabra" was the title of the midseason finale of season 4 of the supernatural drama television series Grimm, in December 2014.
• Teen Titans Academy, a DC Comics book, has a bat-like metahuman called Chupacabra, whose alter ego is Diego Pérez, named in honour of George Pérez (the artist that initially illustrated the Teen Titans).
• A 1999 episode of Futurama features a monster called "El Chupanibre".
• In the Jackie Chan Adventures episode "The Curse of El Chupacabra", Jackie Chan's friend El Toro gets scratched and infected by a Chupacabra, causing him to transform into another Chupacabra every night, much like a werewolf.
• In season 3 of Workaholics called "To Kill a Chupacabraj", Blake finds what he believes to be the deceased corpse of the Rancho Chupacabra in the pool, though it turns out to be the neighbor's dog.
• In the Netflix original series The Imperfects, the character of Juan Ruiz transforms into a chupacabra whenever anyone he cares about is in danger.
• The 2016 film La leyenda del Chupacabras features the titular Chupacabra initially as an antagonist before revealing the creature is merely trying to rescue its family.
• The Brazilian Chupa-Cu legend created in 2017 takes its cues from the chupacabra.
• A "Chupakabura" plays the role of a tourism mascot for the fictional town of Manoyama in P.A. Works' 2017 anime Sakura Quest. The spelling and pronunciation relates to a retired mascot called "Kabura Kid", whose name was a pun alluding to the Japanese word for turnips.
• The 2023 film Chupa is about a chupacabra that is saved from scientists who want to capture it to prove it is real and exploit it for medicine.
• The 2010-2011 Super Sentai series Tensou Sentai Goseiger's main antagonist Brajira of the Messiah assumes the guise Buredoran of the Chupacabra when working with the Yuumajuu, the villain faction of the second arc that is based on cryptids.
• The Ukrainian news program TSN used to broadcast fake news about the Chupacabra when no interesting news were there to broadcast.
• In a short titled "Mission: Chupacabras" from Helluva Boss, a Mexican goat-farmer mistakes Blitzo for a chupacabra and tries to sell him.

• Alleged chupacabra likely a "Xolo dog"; story a hoax
• Lundborg, Pam (25 September 2009). ""Chupacabra" remains bought by Oswego County man". Syracuse.com. Retrieved 20 January 2016.
• Chupacabra mystery solved from Seeker.com
• Ooty: Kangaroo cousin lived in western ghats?
• Dunning, Brian (22 January 2022). "Skeptoid #815: On the Trail of the Chupacabra". Skeptoid.