Question: What type of animal are both Guatemalan Dogo and Boerboel?

Context articles: Smuggling of firearms into Mexico
Guatemalan Dogo
Jorge Carpio Nicolle
Covariance and contravariance (computer science)
Yekyua
Boerboel
Dogo Cubano
Perro de Presa Canario
Domo Polideportivo de la CDAG
Ricardo Arjona

Mexicans have a right to own firearms, but legal purchase from the single Mexican gun shop in Mexico City, controlled by the Army, is extremely difficult.
 Guns smuggled into Mexico are sometimes obtained at gunshops in the United States and carried across the US-Mexico border.
 In other cases the guns are obtained through Guatemalan borders or stolen from the police or military.
 Consequently, black market firearms are widely available.
 Many firearms are acquired in the U.S. by women with no criminal history, who transfer their purchases to smugglers through relatives, boyfriends and acquaintances and then smuggled to Mexico a few at a time.
 The most common smuggled firearms include AR-15 and AK-47 type rifles, and FN 5.7 caliber semi-automatic pistols.
 Many firearms are purchased in the United States in a semi-automatic configuration before being converted to fire as select fire machine guns.
 Mexico seized in 2009 a combined total of more than 4,400 firearms of the AK-47 and AR-15 type, and 30% of AK-47 type rifles seized have been modified to select fire weapons, effectively creating assault rifles.
Guatemalan Dogo ("Dogo Guatemalteco"), formerly known as the Guatemalan Bull Terrier ("Bullterrier Guatemalteco"), and Guatemalan Mastiff, is a Molosser-type dog breed originating in Guatemala.
 It is neither recognized by the Fédération Cynologique Internationale (FCI) nor the American Kennel Club (AKC).
 However, it has the official national recognition of the Asociación Canofila Guatemalteca (ACANGUA) where it belongs to the Group 2.2.1 - Mastiffs.
 As the unique breed originating in Guatemala, it is also the national dog of the country.
 Nowadays it has spread to various other countries, such as the USA.
Jorge Carpio Nicolle (October 24, 1932 – July 3, 1993) was a prominent Guatemalan politician and newspaper publisher.
 He was the founder of the Unión del Centro Nacional (National Centrist Union, or UCN) in 1984, and ran as the party's candidate for president in the elections of 1985 and 1990.
 He came in second in both elections.
 He was the founder, director and editor of "El Gráfico", at one time one of Guatemala's largest newspapers.
 He also founded "La Tarde", "El Deportivo", "La Razón", and other newspapers during his career.
 He also served as Guatemala's Ambassador to the United Nations, and formed part of the commission on human rights (1966) He was assassinated on July 3, 1993, along with Juan Vicente Villacorta Fajardo who was a member of one of Guatemala's oldest and well known political families and two other political leaders of the UCN, in the municipality of Chichicastenango, El Quiché.
 Surviving witnesses reported that the murders took place after the group was intercepted by members of the Army Self Defense Patrols, a type of paramilitary unit under the control of the Guatemalan Army.
 According to his widow, Marta Arrivillaga de Carpio, who was with Carpio and the others during the attack, the party's minivan was stopped by a group of armed men in ski masks.
 The assailants said "You're Jorge Carpio" and then shot him three times.
 The other victims of the attack were Alejandro Ávila Guzmán, and Rigoberto Rivas González.
Many programming language type systems support subtyping.
 For instance, if is subtype of , then an expression of type can be used whenever an expression of type could.
 Variance refers to how subtyping between more complex types (list of s versus list of s, function returning versus function returning , ...) relates to subtyping between their components.
 Depending on the variance of the type constructor, the subtyping relation may be either preserved, reversed, or ignored.
 For example in OCaml, "list of Cat" is a subtype of "list of Animal" because the list constructor is covariant, while "function from Animal to String" is a subtype of "function from Cat to String" because the function type constructor is contravariant in the argument type.
Yekyua or "mother animal" is a class of Yakut spirits that remain hidden until the snow melts in the Spring.
 Each yekyua is associated with a particular animal, and they act as familiar spirits to protect the Yakut shaman.
 They are dangerous and powerful.
 The most dangerous are attached to female shamans.
 The type of animal manifestation also determines the strength of the yekyua.
 For example, dog yekyua have very little power, while elk yekyua are quite powerful.
 Only shaman can see the yekyua.
 When a shaman puts his spirit into that of his yekyua, he or she is dependent on his animal part, in as much as if another shaman who has manifested his animal kills that of another, the shaman with the dead animal will himself die.
 When the yekyua are fighting in the spring, the shaman with which they are associated feel very ill.
 The dog yekyua are not prized as they gnaw at the shaman and destroy his body, bringing him sickness.
 Ordinarily, though, a good yekyua protects the shaman.
The Boerboel ] , also known as the South African Mastiff, is a large, Molosser-type breed from South Africa bred for the purpose of guarding the homestead.
 These dogs were bred as working farm dogs and is one of the most powerful dog breeds.
Dogo Cubano also known as the Cuban Mastiff, Cuban Dogo and Cuban Dogge is an extinct dog breed from Cuba.
 It was of the Bull Mastiff type and was used for dog fighting.
The Perro de Presa Canario, A.K.A. the Canary Mastiff, is a large Molosser-type dog breed originally bred for working livestock.
 The name of the breed is Spanish, means "Canarian catch dog", and is often shortened to "Presa Canario" or simply "Presa".
 The breed is sometimes also called Dogo Canario, meaning "Canarian Molosser".
 It is the animal symbol of the island of Gran Canaria.
The Domo Polideportivo de la CDAG, known commonly as Domo de la Zona 13, or simply as Domo (dome, due to the type of its roof structure), is a multi-purpose arena in Guatemala City, Guatemala.
 Built to host the 2000 FIFA Futsal World Championship, it is located in the Zone 13 of the Guatemalan capital, in the location of the Guatemalan bullring, and has a capacity of 7,500 seats.
Edgar R. Arjona Morales (born 19 January 1964), known as Ricardo Arjona (] ), is a Guatemalan singer-songwriter and former basketball player and school teacher.
 Arjona is one of the most successful Latin American artists of all time, with more than 40 million albums sold.
 He is often called "El Animal Nocturno" ("The Nocturnal Animal"), thanks to his breakthrough success with his fourth studio album which bears the same name.
 His music ranges from ballads to Latin pop, rock, pop rock, Cuban music, and more recently a cappella performances and a mixture of Tejano music and Norteño music, and other Afro-American and Latin sounds.
 Arjona is noted for his lyrical style, and often addresses topics such as love, sexuality, violence, racism and immigration.