They shave their wool in the summer because in winter, you cut their wool they will get cold. They cant gain all their wool really fast to protect themselves by cold weather.
More properly, the raw material from which wool is spun is called fleece.
Sheep
Llamas, alpacas, Vicunas, guanacos, sheep, cashmere goats and cashmere rabbits can give wool. Llamas, alpacas, Vicunas and guanacos have very little lanolin in their wool so those who are allergic to sheep's wool, can typically wear lama wool.
wool
Sheep give us wool - though it would be better to say Sheep produce wool
Produce lambs and wool.
Yes some breeds of sheep produce wool.
Yes they produce meat and wool.
Wool provides the sheep with insulation during colder temperatures, provides humans with the ability to produce clothing.
Fine wool which means it has a finer micron.
No. Sheep produce wool. Pigs produce stiff bristles, which are sometimes used in hair brushes.
I imagine that the advantage is that they produce more wool. They take up the same amount of resources and space as other sheep...but give you more product.