PSYC 3420 Chapter Notes - Chapter 7: Decision-Making, Cleft Lip And Cleft Palate, Miscarriage

• School: York University
• Department: Psychology
• Course: PSYC 3420
• Professor: Irwin Silverman

Document Summary

Evolution chapter 7 page 1: selection has designed precisely such that psychological mechanisms - parental motivation designed to ensure the survival of reproductive success of the invaluable vehicles that transport an individual"s genes into the next generation. Why do mothers provide more parental care than. This problem is strongest in species with internal female fertilizations, Males suffer tremendous costs by channeling their resources to other. Therefore, it is less advantages for males to invest their resources in. Resources devoted to a rival"s children are resources taken away from. Paternity uncertainty doesn"t preclude the evolution of male parental care: the mating opportunity costs hypothesis. Mating opportunity costs are missed additional matings as a direct result of effort devoted to offspring. The reproductive success of males tends to be limited by the. The mating opportunity costs are higher for males than for females number of fertile females they can successfully inseminate.