Leucism occurs when black ravens with the same recessive gene for leucism produce offspring. This is very rare. In fact, it’s so rare that only a few white ravens appear each year.

After locals reported seeing an odd-colored squirrel in India, scientists tracked down a squirrel with leucism, a “relatively rare” sight. Screengrab from SSA shagun's YouTube video Outside a ...

After locals reported seeing an odd-colored squirrel in India, scientists tracked down a squirrel with leucism, a “relatively rare” sight. Screengrab from SSA shagun's YouTube video Outside a ...

After locals reported seeing an odd-colored squirrel in India, scientists tracked down a squirrel with leucism, a “relatively rare” sight. Screengrab from SSA shagun's YouTube video Outside a ...

After locals reported seeing an odd-colored squirrel in India, scientists tracked down a squirrel with leucism, a “relatively rare” sight. Screengrab from SSA shagun's YouTube video Outside a ...