Albino animals are very rare in nature, and man has long had a fascination for these creatures since ancient times. Some cultures regard albinos as sacred animals,and they have even been the basis of great legends and folklore. Due to their uniqueness and rarity, albino animals are some of the most valuable attractions in zoological centers and circuses throughout the world.

Leucistic animals are often mistaken as being albino creatures, such as white lions. Leucism is a condition similar to albinism, characterized by reduced pigmentation in general and can also affect distribution of pigment on the hair shaft, but unlike albinism, it’s caused by a reduction in all types of skin pigment, not just melanin.

Albinism is a form of hypopigmentary congenital disorder, characterized by a partial or total lack of melanin pigment in the eyes, skin and hair. Albinism results from inheritance of recessive alleles (genes) and the condition is known to affect mammals (including humans), fish, birds, reptiles and amphibians.

Albinism is hereditary;it is not an infectious disease and cannot be transmitted through contact, blood transfusions, or other vectors. The principal gene which results in albinism prevents the body from making the usual amounts of the pigment melanin. Most forms of albinism are the result of the biological inheritance of genetically recessive alleles (genes) passed from both parents of an individual, though some rare forms are inherited from only one parent. There are other genetic mutations which are proven to be associated with albinism. All alterations, however, lead to changes in melanin production in the body.

Most humans and many animals with albinism appear white or very pale.In some animals, especially albinistic birds and reptiles, ruddy and yellow hues or other colors may be present on the entire body or in patches due to the presence of other pigments unaffected by albinism, as well as carotenoid pigments derived from the diet. Some animals are white or pale due to pigment cell defects, do not lack melanin production, and have normal eyes — referred to as leucistic.

 
 
https://junglemagazine.com/genetic-mutations-or-sacred-animals-30-examples-of-albinism/
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