Booroola Gene Tamarack Lamb & Wool, www.tamaracksheep.com/booroola.html

Bruce, R.V., Bell. (Ithaca, NY: Cornell University Press, 1990).

Buss, D.H., and J.E. Hamner III, "Papio cynocephalus" [Supernumerary nipples in the baboon] Folia Primatologica 16 (1971): 153-158.

Davis, G.H., "DNA Tests in Prolific Sheep from Eight Countries Provide New Evidence on Origin of the Booroola (FecB) Mutation," Biology of Reproduction 66 (2002): 1,869-1,874.

Derocher, A.E., "Supernumerary Mammae and Nipples in the Polar Bear (Ursus maritimus)," Journal of Mammalogy 71 (1990): 236-237.

Eber, D.H., Genius at Work, (Toronto: McClelland and Stewart Ltd., 1982).

Erickson, A.W., "Supernumerary Mammae in the Black Bear," Journal of Mammology 41 (1960): 409.

Graham Bell, A., "Saving the Six-Nippled Breed," Journal of Heredity 14 (1923): 99-111.

Graham Bell, A., "The Multi-Nippled Sheep of Beinn Bhreagh," Science 19, no. 489 (1904): 767-768.

Goertzen, B.L. and H.L. Ibsen, "Spernumerary Mammae in Guinea Pigs," Journal of Heredity, 42 (1951): 307-311.Graham Bell, A., "Sheep-Breeding Experiments on Beinn Bhreagh," Science 36, no. 925 (1912): 378-384.

Mackenzie, C., Alexander Graham Bell (Boston: Houghton Mifflin Company, 1928).

Oftedal, O.T., "The Mammary Gland and Its Origin During Synapsid Evolution," Journal of Mammary Gland Biology and Neoplasia 7, no. 3 (2002): 225-252.

Speert, H., "Supernumerary Mammae, with Special Reference to the Rhesus Monkey," The Quarterly Review of Biology 17, no. 1 (1942): 59-68.

Time Magazine  "Alexander Bell's Sheep," Time, February 9, 1942 www.time.com/time/magazine/article/0,9171,777628-1,00.html

Yoon, C.K., "Of Breasts, Behaviour, and the Size of Litters," New York Times, October 19, 1999, query.nytimes.com/gst/fullpage.html?res=9505EFD81739F93AA25753C1A96F958260&sec=&spon=&pagewanted=print 

 
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