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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.
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.
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.
Familiar albino animals include in-bred strains of laboratory animals (rats, mice and rabbits), but populations of naturally occurring albino animals exist in the wild, e.g., Mexican cave tetra. Albinism is a well-recognized phenomenon in molluscs, both in the shell and in the soft parts.
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A Facebook group dedicated to these squirrels, called I've Seen the Albino Squirrel of Michigan Tech, was created for people to post photographs and anecdotes of their encounters with the white squirrels, and includes some stories from Michigan Tech alumni that recall seeing white squirrels in Houghton dating back to the 1930s.
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 ...
The scientists consider the shark a case of leucism, a rare genetic disorder that affects melanin production. In leucistic sharks, the iris pigmentation is normal even when the rest of the body ...