* Peccary and Javelina are the same animal. Javelina is a common name for the collared peccary ( *Pecari tajacu*), which is found in the Americas.
* Peccaries and swine are not in the same species. They are in different families within the order Artiodactyla (even-toed ungulates).
* Peccary and swine cannot produce fertile offspring. They are too genetically distinct for interbreeding to result in viable offspring.
Think of it like this: while both dogs and wolves are canines, they are different species and can't naturally produce offspring together. Similarly, peccaries and swine are in different families, making interbreeding impossible.