The Descent of Man and Selection in Relation to Sex, Part 3

Description

The Descent of Man, and Selection in Relation to Sex is a book of science written by the English naturalist Charles Darwin, which was first printed in 1871, applying the evolutionary theory to human evolution, and discusses his theory of sexual selection, a concept of biological adaptation dissimilar yet related with natural selection. The text includes several matters, such as evolutionary psychology, evolutionary ethics, distinctions between human races, distinctions between sexes, the vital role of women in mate selection, and the relevance of the evolutionary theory to the community.

In Part 3 of Darwin’s book, he continues to explain on sexual selection, as it is a means of natural selection where members of one biological sex choose mates of the other sex to mate with, it is referred to as intersexual selection, and compete with members of the same sex for access to members of the opposite sex or intrasexual selection. These two methods of selection are defined that many individuals are successful in procreation than the others, whether they opt to become more attractive or prefer more attractive partners to have posterities. In the upbringing of season sexual selection, for example, in frogs, where the males gathers at the edge of the waters and create sounds as their mating calls by croaking. Then the females appear and take the males with the loudest croaks. Overall, males profit from repeated mating to a group of fertile females. Females have a rationed number of posterities they can produce and they increase the capacity to reproduce through being active and healthy.

The continuation of sexual reproduction in the aggressive world is one of the most perplexed in the science of biology given for instance that asexual reproduction can reproduce more likely as 50% of offspring are not males, who are not capable of producing offspring.
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