When robins lay a clutch of more than four eggs,their chicks are often malnourished because they have so many to feed.If the robins lay fewer than four eggs,they may not have any viable offspring.As a result,robins typically lay a clutch of four eggs.This is an example of

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This is an example of stabilizing selection because the fitness of offspring is favored when the clutch size is of intermediate size, whereas extreme or smaller clutch sizes lead to decreased fitness.

When Robins Lay a Clutch of More Than Four Eggs,their