Females are seen to make a big investment for many reasons such as they care for the foetus during pregnancy which uses much of the females resources for survival of the fittest. Also females tend to breastfeed their young which also uses a lot of the mothers resources. This possible action of females investing more in their young was reinforced by Shostak (1981) who found that breastfeeding continued for up to four years in some societies. This indicates a huge asymmetry between the come alivees regarding sign investment. Trivers (1972) defined parental investment as: any investment by the arent in an individual offspring that increases its chances of survival, suggesting that the sex invests the least (males) will compete over the sex that invests the most (females).
Paternal investment is the idea that human males send word opt out of parental investment in a way that females cannot.
By expending a relatively prominent part of their reproductive effort on courtship and mating, males of most species can afford to devote comparatively little quantify to parental care (Daly and Wilson 1978). Males do not have the resembling degree of certainty concerning the paternity of offspring, and determining fatherhood be tricky in promiscuous-mating arrangements. The great vulnerability for men is that they may use up valuable resources raising children who are not their own (this is known as Cuckoldry). The possibility of sexual infidelity posed different adaptive problems for males and females. For a man an treacherous mate meant that he risked investing in offspring that...If you requisite to get a full essay, order it on our website: Orderessay
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