Hair vs. wool
Hair sheep are not a cross between sheep and goats. The primary difference between hair sheep and wooled sheep is the ratio of hair to wool fibers. Hair sheep have more hair fibers and wool sheep have more wool fibers. Wooled sheep need sheared. Hair sheep do not. Hair sheep also do not usually need their tails docked. Most wooled sheep have their tails docked for reasons of health and sanitation. Hair sheep are more suited for tropical enviroments.