Lambs' Mamas are female sheep, also known as ewes. The term 'ewes' is used to refer to adult female sheep and is derived from the Old English word for female sheep, which is 'EWE'. Lambs' Mamas are responsible for providing nourishment and protection to their young. They are also important for maintaining the health of the flock, as they provide a source of nutrition and help to keep the flock safe from predators.