animal (protein) fibres and plant (cellulose) fibres.
Protein fibres are derived from animals and include [[wool]], [[cashmere]], [[alpaca]], [[silk]] and [[leather]].
Protein fibres are derived from animals and include wool, cashmere, alpaca, silk and leather. Cellulose fibres are derived from plants, and are products of agriculture. Fibres are either bast fibres (the fibre found in the stem of the plant) such as [[flax linen]] or [[hemp]], or seed fibres such as [[cotton]].
----
''This article is still a stub and needs your attention. Please plunge forward and help it grow!''