Natural Selection Model
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The green snakes camouflaged in the grass and the brown snakes hid in the trees. Both were unseen so they survived in peace.
One day, humans cut down the trees for materials.
This caused the brown snakes to stand out but the green snakes continued to blend in.
Not long after, the brown snakes were eaten
The green snakes reproduced and lived long lives by disguising in the grass
Eventually the grass died out and the land was covered in dirt and the green snakes had to adapt and over time the brown snakes started to re appear