Pigs Did Not Originate in Mexico: Their True Origins and American Arrival

Domestic pigs (Sus scrofa domesticus) originated in Eurasia, not Mexico. They descend from wild boar (Sus scrofa) domesticated independently in Anatolia (Turkey) and East Asia ~9,000–11,000 years ago.

Domestication Centers

• Near East (Fertile Crescent): ~9,000 BCE – earliest archaeological evidence (Çayönü, Nevalı Çori).
• East China (Yellow/Yangtze valleys): ~8,000 BCE – distinct genetic lineage.
• European wild boar later incorporated via introgression.

Spread to Europe & Beyond

• Neolithic farmers brought pigs to Europe (~7,000 BCE).
• Spanish & Portuguese introduced them to Canary Islands, Caribbean, Mexico (1493 onward).
• Hernán Cortés brought first pigs to mainland Mexico (1519).
• De Soto expedition (1539) released pigs in Southeast US – ancestors of feral "razorbacks."

Pre-Columbian Americas

No suids existed in the Americas before 1492. Native megafauna included peccaries (javelinas) – distant relatives, not pigs.

Mexican Pig Culture Today

• Cochinita pibil (Yucatán), carnitas (Michoacán), chorizo – Spanish-introduced, locally adapted.
• Creole breeds (e.g., Cerdo Pelón Mexicano) – hairless, heat-tolerant, from Iberian stock.
• Mexico = 7th largest pork producer globally (2023: 1.5M tonnes).