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Lamb

A lamb is a young sheep, usually under one year old.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

A lamb is a young sheep, usually under one year old. The term also refers to the meat from a young sheep. Lambs are domesticated herd animals raised widely for meat, wool, and other products, and they have been among the earliest animals domesticated by humans. In Canada, lamb is a familiar livestock and meat term, with sheep farming and lamb production forming part of Canadian agriculture and food markets.

Definition

Lamb is the term for a young sheep, typically one that is less than a year old. In food contexts, it also means meat from a sheep of this age. Adult sheep are usually called rams if male and ewes if female.

Biology and behaviour

Lambs are herbivorous ruminants and depend on milk early in life before grazing on plants. They are known for being active and for developing within a flock structure shared with other sheep. Lambs are usually smaller and have softer wool than adult sheep.

Domestication and use by humans

Sheep are among the earliest domesticated livestock species, with long use in agriculture for meat, wool, milk, leather, and other products. Lamb has remained an important food animal in many regions. Sheep were domesticated thousands of years ago and have long been important for meat and wool.

Lamb in food terminology

In meat classification, lamb is distinguished from mutton, which comes from older sheep. Lamb meat is generally described as milder and more tender than mutton.

Key facts

  • A lamb is a young sheep, generally defined as a sheep under one year old.
  • Lambs are herbivores and, like other sheep, are ruminants with a specialized digestive system for plant matter.
  • The word lamb also refers to meat from a young sheep.
  • Sheep were domesticated thousands of years ago and have long been important for meat and wool.
  • Lambs are usually smaller and have softer wool than adult sheep.
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Canadian context

Lamb is a familiar livestock and meat term in Canada, where sheep farming and lamb production are part of Canadian agriculture and food markets.

Frequently asked questions

What is a lamb?
A lamb is a young sheep, usually under one year old.
Is lamb the same as sheep?
A lamb is the juvenile stage of a sheep; adult sheep are not usually called lambs.
What does lamb mean in food?
It means meat from a young sheep, usually less than a year old.
What do you call adult male and female sheep?
Adult males are called rams and adult females are called ewes.
What do lambs eat?
Lambs are herbivores and later eat grasses and other plants; very young lambs also nurse from their mothers.

References

  1. USDA Food Safety and Inspection Servicehttps://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/meat-catfish/lamb-farm-table
    Supports: Defines lamb as a young sheep, distinguishes lamb from mutton, and describes lamb as a livestock product.
  2. Wikipediahttps://en.wikipedia.org/wiki/Sheep
    Supports: Provides basic sheep terminology, including lamb, ram, and ewe, and notes sheep as domesticated livestock.
  3. Facts Mostlyhttps://www.factsmostly.com/facts-about-lambs/
    Supports: States that lambs are young sheep, describes their herbivorous diet, and notes their role in domestication and agriculture.