Why Do We Have Butt Hair?

You’ve asked. Now we’re answering.

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Sources:
https://books.google.com/books?id=NYBux6MdmbIC&pg=PA71&lpg=PA71&dq=anal+hair+biology&source=bl&ots=_Lf6gVwvJW&sig=eN0ncqTD0wS8cBVLfM4ieYd8pYk&hl=en&sa=X&ved=0ahUKEwjqlv7giYzLAhUCxmMKHbXHCQk4FBDoAQhXMAg#v=onepage&q=anal%20hair%20biology&f=false

http://www.krepublishers.com/02-Journals/T-Anth/Anth-12-0-000-10-Web/Anth-12-1-000-10-Abst-PDF/Anth-12-1-047-10-438-Sen-J/Anth-12-1-047-10-438-Sen-J-Tt.pdf

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3140333/

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263130/

https://commons.wikimedia.org/w/index.php?curid=672435

https://commons.wikimedia.org/wiki/File%3ABrown_hair_texture.jpg

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