18 Animals That Lost and Won the Genetic Lottery at the Same Time

Melanistic gray seal: Observations of gray seals in the North Sea have shown that black-and-white seals are not common. One in 300 seals is estimated to have the color genes deviations. Researchers pointed out that young black pups behave naturally with the rest of the group and didn't feel like outsiders. Who wouldn't love those eyes? Black seals are rare with research suggesting approximately 1 in 400 grey seals are melanistic.