Assertion: infidelity | /r/CapableOf | impose such a fitness cost
Facets:
Source sentences:
text: Because infidelity imposed such a fitness cost, those who had the jealous emotional response, improved their fitness, and could pass down the jealousy module to the next generation.
text: Because infidelity imposed such a fitness cost, those who had the jealous emotional response, improved their fitness, and could pass down the jealousy module to the next generation.