The difference between lamb and mutton is that lamb is the meat that comes from young sheep that are usually under a year old and mutton is a distinct meat product that is also from sheep but comes from older sheep.
Lamb meat is also known for having a tender texture and mild flavor and mutton which comes from older sheep tends to have a stronger flavor and also requires slower cooking methods.
Lamb is the term that is used for meat that comes from young sheep that are often under a year old.
Although lamb is sheep meat, sheep meat also called mutton is a distinct meat product that comes from older sheep.
Lamb meat is also known for having a tender texture and mild flavor and mutton which comes from older sheep tends to have a stronger flavor and also requires slower cooking methods.
Also in the U.S. "lamb" can also be used to refer to meat from sheep which are also between one and two years old and is a category that is sometimes called "hogget" in other countries.
Lamb is basically the meat from young domesticated sheep, "Ovis aries", usually under 12 months of age.
And lamb meat is naturally tender and has a mild, delicate flavor.
And in the United States, the term "lamb" may also be used for meat that comes from sheep between the ages of 12 months to 2 years old.
Mutton is the term for meat from older sheep, often those over 12 to 2 years of age.