The tan colored insects lived with the green colored insects in a sandy environment.
They compete for survival by hiding from predators.
Overtime, the sandy environment turns into a grass-filled meadow.
The green colored insects blended into the grass to survive. The tan colored insects stood out in the green grass.
Predators could easily see the tan colored insects so they were easy prey for them.
Soon, there are only green colored insects left because they are better suited to survive in a green meadow. They are harder to find than the tan colored insects.
