Previous studies about the effects of social rejection on individuals' social behaviors have produced mixed results and tend to study mating behaviors from a static point of view. However, mate selection in essence is a dynamic process, and therefore sociometer theory opens up a new perspective for studying mating and its underlying practices. Based on this theory and using self-perceived mate ...

Sexual conflict is caused by differences between the sexes in how fitness maximized. These are shaped discrepancy investment gametes, mates chosen and embryos young provided for. Fish family Poeciliidae vary from completely provisioning eggs before they fertilized to providing virtually all resources after fertilization via functional equivalent of a mammalian placenta. This shift when females ...

Within social sciences, the standards of beauty were for a long time considered to be culturally determined, meaning that different people with different life experiences in different cultures acquire different standards of beauty, as captured in the famous sentence "Beauty is in the eye of the beholder". However, two groups of findings have challenged this common assumption: first, people in d...

This study aims to investigate the role played by social networks, including Facebook and Telegram, in changing the social life styles of the young and middle-aged generations of Iranian society. The research method consists of survey group of 512 people of the young and middle-aged generations selected from 5 provinces using multi-stage cluster sampling. Data were collected using a research-ma...

This article focuses on some of the negative aspects of cyberspace andcyberculture. First, it offers an examination of the impact of our use ofsocial media, and Facebook in particular, on our psyches, pointing out thatusers of social media can be thought of as audiences. These audiencesand information about them can be sold to marketers and advertisers.Next, it offers a case study of a widespre...

Selection leads to genetic improvement but also reduces genetic variation in the progeny. When all animals in a population are closely related there is little genetic variation and little scope for further genetic progress. Mate selection procedures are used to help maintain genetic variation, and hence genetic progress, in the future and to avoid the fitness problems related to severe inbreeding.