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Albinism is the congenital absence of any pigmentation ( colouration ) in an animal, plant, or person, resulting in white hair, feathers, scales and skin and pink eyes in mammals, birds, reptiles, amphibians and fish and invertebrates as well..

It is a common misconception that all albino animals have characteristic pink or red eyes (resulting from the lack of pigment in the iris allowing the blood vessels of the retina to be visible), however this is not the case for some forms of albinism . Familiar albino animals include in-bred strains of laboratory animals (rats, mice and rabbits), but populations of naturally occurring albino animals exist in the wil d ..

Oculocutaneous albinism (OCA) is a clearly defined set of seven types of genetic mutations which reduce or completely prevent the synthesis of eumelanin or pheomelanin, resulting in reduced pigmentation. Type I oculocutaneous albinism (OCA1a) is the form most commonly recognised as 'albino' as this results in a complete absence of melanin in the skin, hair/fur/feathers, and pink pupils, however this has led many to assume that all albinos are pure white with pink pupils, which is not the case..

References . I strongly appreciate the contribution to the knowledge gap by various authors. Below are the references for the above information put together. "Information Bulletin – What is Albinism?". National Organization for Albinism and Hypopigmentation. January 27, 2018. Retrieved June 23, 2020. Gunnarsson, Ulrika; Hellström, Anders R.; Tixier-Boichard, Michele; Minvielle, Francis; Bed'hom, Bertrand; Ito, Shin'ichi; Jensen, Per; Rattink, Annemieke; Vereijken, Addie; Andersson, Leif (February 2007). "Mutations in SLC45A2 Cause Plumage Color Variation in Chicken and Japanese Quail". Genetics. 175 (2): 867–877. doi:10.1534/genetics.106.063107. ISSN 0016-6731. PMC 1800597. PMID 17151254.. Menzel, R. W. (1958). "Further notes on the albino catfish". Journal of Heredity. 49 (6): 284–293. doi:10.1093/oxfordjournals.jhered.a106828. Jump up to: a b c d Purdom, C. F., ed. (1993). Genetics and Fish Breeding. London: Chapman and Hall. p. 27. ISBN 978-0-412-33040-7. Retrieved February 2, 2015. albinism in fish. "Rare Pink Dolphin Seen in Louisiana Lake". Fox News Channel. July 3, 2007. Archived from the original on February 24, 2010. Retrieved February 27, 2010. "Albino Animals from Snowflake the white gorilla to White Diamond the alligator". The Telegraph Leal, M. E.; et al. (2013). "First record of partial albinism in two catfish species of Genidens (Siluriformes: Ariidae) in an estuary of Southern Brazil". Brazilian Archives of Biology and Technology. 56 (2): 237–240. doi:10.1590/S1516-89132013000200008. https://en.wikipedia.org/wiki/Albinism Martin, R. A. "Albinism in sharks". ReefQuest Centre for Shark Research. Retrieved February 2, 2015. Locket, N. A. (1986). "Albinism and eye structure in an Australian scorpion, Urodacus yaschenkoi (Scorpiones, Scorpionidae)". Journal of Arachnology. 14 (1): 101–115. JSTOR 3705557. Jump up to: a b "10 Most Incredible Albino Animals on Earth". Scribol. Retrieved January 20, 2015..

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