Which of the following do not yield wool?
Wooly dog
Answer: (4) Wooly dog
Wool is a textile fiber obtained from sheep and some other animals, including cashmere and mohair from goats, qiviut from muskoxen, angora from rabbits, and other types of wool from camelids.
Wool fibres are obtained from sheep, goat, angora rabbits, goats, alpaca and even camels.