English often uses one word for a living animal and another for its meat: pig/pork, cow/beef, sheep/mutton, calf/veal, and deer/venison. Chicken and fish generally keep the same word in everyday food contexts, while “poultry” is a broader category for birds raised for eggs or meat. These are vocabulary conventions with historical roots; the article’s class-based explanation is a simplified account, not a complete or certain history.
Cultural note: Food words vary by language, region, menu, and personal diet. “Mutton” usually refers to meat from an adult sheep, while “lamb” is from a young sheep; menus may use “lamb” more often. The article retells a social-class explanation for animal/meat terms, but historical vocabulary developed through many influences; treat that story as a proposed explanation, not settled fact. Ask about ingredients and dietary restrictions rather than assuming what someone eats.
Keep exploringA pig lives on a farm; pork appears on a menu. English keeps different words for several animals and their meat.