Natural fiber has part(s) animal fiber
Plant fibers
Animal fibers
Animal fibers generally comprise proteins such as collagen, keratin and fibroin; examples include silk, sinew, wool, catgut, angora, mohair and alpaca.Animal hair (wool or hairs): Fiber or wool taken from animals or hairy mammals. e.g. sheep's wool, goat hair (cashmere, mohair), alpaca hair, horse hair, etc.
Silk fiber: Fiber secreted by glands (often located near the mouth) of insects during the preparation of cocoons.Applications
Industrial use
Of industrial value are four animal fibers: wool, silk, camel hair, and angora as well as four plant fibers: cotton, flax, hemp, and jute.  Dominant in terms of scale of production and use is cotton for textiles.
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