Here guys this should settle the question about what a Javalina actualy is.
Is it a "Pig" or Not?
Most people think of Javelina as "pigs", just a desert variety of the common barnyard animal we all know so well. The fact is Javelina do share common ancestry to old world pigs and even similarities in appearance. However, Javelina have many significant differences. They have a different number of teeth, a different gestation period, a complex (versus simple) stomach, and a musk gland on their backs--the fact is, they are not "pigs".
Both Javelina (collared peccaries ~ tayassu tajacu), and pigs are members of the order artiodactyla, suborder suiformes, sharing a common ancestry dating back some 30 million years. But, because of significant anatomical and genetic differences they, have been placed in separate families - pigs in the Suidae family and Javelina in the tayassuidae.