Editing Yarn (section)

====Animal fibers====
The most common spun animal fiber is [[wool]] harvested from [[sheep]]. As long fibers make better yarn, sheep have been bred over time to produce longer fibers. This increases the need for [[Sheep shearing|shearing]] to prevent pests and overheating.<ref name="doyle">{{cite journal |last1=Doyle |first1=EK |last2=Preston |first2=JWV |last3=McGregor |first3=BA |last4=Hynd |first4=PI |title=The science behind the wool industry. The importance and value of wool production from sheep. |journal=Anim Front |date=May 17, 2021 |volume=11 |issue=2 |pages=15–23 |doi=10.1093/af/vfab005 |pmid=34026311 |pmc=8127695 }}</ref>

Other animal fibers used include [[alpaca]], [[Angora wool|angora]], [[mohair]], [[llama]], [[Cashmere wool|cashmere]], and silk.<ref name="vikki">{{cite book |last1=Haffenden |first1=Vikki |last2=Patmore |first2=Frederica |title=The Knitting Book: Over 250 Step-by-Step Techniques |date=2019 |publisher=DK Publishing |location=New York |isbn=9781465482402 |url=https://books.google.com/books?id=qbW1DwAAQBAJ |access-date=6 November 2024}}</ref> More rarely, yarn may be spun from [[camel]], [[yak]], [[common brushtail possum|possum]], [[musk ox]], [[vicuña]], [[cat]], [[Chiengora|dog]], [[wolf]], [[Angora rabbit|rabbit]], [[bison]], or [[chinchilla]] hair, as well as [[Turkey (bird)|turkey]] or [[ostrich]] feathers.