Costs of Cooperative Breeding
The primary disadvantage of cooperative breeding is the cost of expending energy towards raising the offspring of another individual. A study conducted by Cornwallis et al. showed a strong negative correlation between the evolution of promiscuity and the evolution of cooperative breeding, suggesting that cooperative breeding is more likely to evolve in populations where females mate with fewer males. For species with multiple-mating systems, the time and energy spent raising another’s offspring would prove too costly for cooperative breeding to be selected for.
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“To exercise power costs effort and demands courage. That is why so many fail to assert rights to which they are perfectly entitled—because a right is a kind of power but they are too lazy or too cowardly to exercise it. The virtues which cloak these faults are called patience and forbearance.”
—Friedrich Nietzsche (1844–1900)
“Then we grow up to be Daddy. Domesticated men with undomesticated, frontier dreams. Suddenly life—or is it the children?—is not as cooperative as it ought to be. It’s tough to be in command of anything when a baby is crying or a ten-year-old is in despair. It’s tough to feel a sense of control when you’ve got to stop six times during the half-hour ride to Grandma’s.”
—Hugh O’Neill (20th century)
“Civility, which is a disposition to accommodate and oblige others, is essentially the same in every country; but good breeding, as it is called, which is the manner of exerting that disposition, is different in almost every country, and merely local; and every man of sense imitates and conforms to that local good breeding of the place which he is at.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)