Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes, which is less than one percent of the total are slightly different between people.
If Migaloo is albino he mostlyly lives with snow and a lot of white in his souroundings. Since he is white and everything eles is white he can blend into he souroundings to hide from anything trying to attack/eat him.
