sexual desires
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Sexual selection is a component of natural selection in which mating success is traded for survival. Natural selection is not necessarily survival of the fittest, but reproduction of the fittest. Sexual dimorphism is a product of sexual selection. In intersexual selection, a sex chooses a mate. In intrasexual selection, individuals of one sex compete among themselves for access to mates. Often honest, costly signals are used to help the se...more
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Mitosis, meiosis and sexual reproduction. Understanding gametes, zygotes, and haploid / diploid numbers.
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Mutations are the origin of genetic diversity. Mutations introduce new traits, while selection eliminates most of the reproductively unsuccessful traits. Sexual recombination of alleles can also account for much of the genetic diversity in sexual species. In some instances, population size can affect diversity and rates of evolution and fixation, but in other cases population size does not matter.
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Genetics controls evolution. There are four major genetic systems, which are combinations of sexual/asexual and haploid/diploid. In all genetic systems, adaptive genetic change tends to start out slow, accelerate in the middle, and occur slowly at the end. Asexual haploids can change the fastest, while sexual diploids usually change the slowest. Gene frequencies in large populations only change if the population undergoes selection.
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Williams believes that entrepreneurship can be taught as it is a combination of skills and intense desires that drive a person to overcome challenges.
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Verma explains why it is important to hire someone who is hungry, whose values and desires mesh with the company's. Rather than relying solely on the resume, look to these other qualities when building a team, he says.
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Two more views regarding the metaphysical key to personal identity are discussed: the body view and the personality view. According to the body view, an individual is identified in terms of his or her physical body. According to the personality view, an individual is identified by his or her unique set of beliefs, desires, memories, goals, and so on.
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We first complete our discussion of the candidate-voter model showing, in particular, that, in equilibrium, two candidates cannot be too far apart. Then we play and analyze Schelling's location game. We discuss how segregation can occur in society even if no one desires it. We also learn that seemingly irrelevant details of a model can matter. We consider randomizations first by a central authority (such as in a bussing policy), and then d...more
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Such is the gloom that surrounds settling down today and the glamour that attaches to mature bachelor freedom, it is hard to imagine that there was a time when marriage represented the summit of a young man's hopes. Forty years after the sexual liberalization of the 1970s, it is easy to forget that only marriage promised true sexual fulfillment for Christians, turning furtive or frustrated boys into fully-realized men. Marriage was t...more
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This lecture reviews what evolutionary theories and recent studies in psychology can tell us about sex and gender differences. Students will hear how psychology can help explain many of the differences that exist in whom we find attractive, what we desire in a mate, and sexual orientation.
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How hormones, phermones and bonding chemicals connect with the experiences of sexual arousal and romantic love. To what extent are we victims of our brain chemistry and neural processes? What are the evolutionary origins and adaptive values of "falling in love"?
