View This Storyboard as a Slide Show!
Create your own!
Like What You See?
This storyboard was created with
Natural SelectionBy Angelique De Anda
Isn’t too cold out here?
Natural Selection happens in polar bears with thin and thick coats.
The temperatures are dropping rapidly and the bears must be kept warm.
Some of the white polar bears freeze to death due to their thin coats. But only one gray polar bear with his thick coat survived.
Because of his thick coat, the polar bear could make it to adulthood and pass on the gene to his offspring.
Since having thick coats is a reproductive advantage to polar bears, natural selection will select against polar bears with thin coats for thick coats.
Now, the trait for thick coats became more popular than thin coats because it maintains polar bears warm.