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However, this is not always the case and many albino animals do not have pink pupils. [9] The common belief that all albinos have pink pupils results in many albinos being incorrectly labeled as 'leucistic'. The neural crest disorders that cause leucism do not result in pink pupils and therefore most leucistic animals have normally colored eyes.
Piebaldism is an autosomal dominant [4] hereditary condition, which tends to produce high rates of inheritance and long chains of generational transmission. All who inherit the gene have at some time in life evidence of piebald hypopigmentation of the hair or skin, most likely both.
Common grackle Iridescence of the grackle's feathers A juvenile common grackle stands in freshly cut grass. The common grackle (Quiscalus quiscula) is a species of large icterid bird found in large numbers through much of North America.
Because of the various uses of different terms applied to colouration, some authors have indicated that the colour of the eyes is the defining characteristic of albinism, e.g. "This leads to a good diagnostic feature with which to distinguish leucistic and albino individuals – the colour of the eye."
Leucism is a rare genetic pattern that causes a reduction in the pigment of an animal's hair and skin. The natural colour of the red deer ranges from dark red to brown.They are often thought to be albinos; however, unlike albinos, who have characteristically red eyes, deer with leucism have normal colouring in their eyes.
BY BOB BRENZING AND NICOLE DIDONATO CEDAR SPRINGS, Mich. – A rare white-faced fawn is finding love on a Cedar Springs farm. "Dragon" was born about a week and a half ago on the farm. But ...
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An extremely rare – and extremely cute – leucistic white alligator has been born at Gatorland, the Orlando park announced Thursday in a news release.