Lamb, hogget, and mutton, generically sheep meat, are domestic sheep, Ovis aries. A sheep in its first year is a lamb, and its meat is also lamb. The meat from sheep in their second year is hogget. Older sheep meat is mutton. Generally, "hogget" and "sheep meat" are not used by consumers outside New Zealand, South Africa, and Australia. In South Asian and Caribbean cuisine, "mutton" often means goat meat. At various times and places, "mutton" or "goat mutton" has occasionally meant goat meat.

Meat and Poultry

Meat is animal flesh that is eaten as food. Poultry is domesticated birds kept by humans for the eggs they produce, their meat, their feathers, or sometimes as pets.

Humans are omnivorous and have hunted and killed animals for meat since prehistoric times. The advent of civilization allowed the domestication of animals such as chickens, sheep, pigs, and cattle, and eventually their use in meat production on an industrial scale.