Lamb and Mutton

Lamb, hogget and mutton[1] are the meat of domestic sheep (species Ovis aries) at different ages. In general a sheep in its first year is called a lamb, and its meat is also called lamb. The meat of a juvenile sheep older than one year is hogget; outside the United States this is also a term for the living animal. The meat of an adult sheep is mutton, a term only used for the meat, not the living animals.