These two penguins are different in their ways for example the white penguin lacks in pigment to get their temperatures high enough to not freeze to death.
These to penguins decided to have an offspring from the white penguin knowing having the genetics to swim fast and the black penguin having the black color to a attract heat from their skin to keep warm.
As the two animals begin having offspring the other penguins who lack in certain areas die off.
As the penguins grow they begin to succeed in life
The penguins had adapted to their surrounding like now they are able to attract heat and be able to swim fast