Helgason et al. (Reports, 8 February 2008, p. 813) reported a positive association between kinship and fertility in the Icelandic population. We point out that the data further suggest that fertility initially increases with kinship and then decays. This is supported by another large study on the Danish population suggesting a superposition of effects of inbreeding and outbreeding depression on...

We examined two indicators of the temporal trajectory of caregiving: (a) duration of caregiving and (b) the perception that caregiving is a new role, an ongoing role, or a role that will end soon. The association between the two depended on the type of onset of the caregiving role (abrupt or gradual) and the type of kinship relationship with the care recipient (wife or daughter). Daughters in l...

Kinship shapes female social networks in many primate populations in which females remain in their natal group to breed. In contrast, it is unclear to which extent kinship affects the social networks in populations with female dispersal. Female Colobus vellerosus show routine facultative dispersal (i.e., some females remain philopatric and others disperse). This dispersal pattern allowed us to ...

The human ability to form large, coordinated groups is among our most impressive social adaptations. Larger groups facilitate synergistic economies of scale for cooperative breeding, such economic tasks as group hunting, and success in conflict with other groups. In many organisms, genetic relationships provide the structure for sociality to evolve via the process of kin selection, and this is ...

Using nationally representative data from the 2012 and 2014 China Labor-force Dynamics Survey, this paper investigates effects of network types (kinship/non-kinship) resources (information/influence) on job attainment match quality in China. We find a wage premium obtained through both kinship non- networks but shorter duration only jobs non-kinship networks. In regards to different networks, e...

Kinship ties is not only amongst the greatest acts of worship and obedience, but it also a permanent indefinite duty, severing kinship major sin, means Kindness to relatives by doing whatever achieve relation as much possible Al-Wasil, whether money, visiting, or asking about them, with participation in their events, other licit relation, research has dealt extent Prophet's Sunnah interest its ...

This article considers the changing role of women within the institution of marriage and the family set-up through the cinematic representation of inter-cultural lesbian relationships. It argues that the inter-cultural lesbian relationship constitutes an example of the emerging visibility of alternative forms of kinship to the heteronormative family model. Analysing the linguistic, temporal, an...

People undeniably pay attention to faces, and facial resemblance may act as a kinship cue. However, previous studies have shown that the ability to detect kinship through facial resemblance is limited, and it has been suggested that this may be due to several types of perceptual factors. To further understand the processes that underpin kinship judgment, it is important to investigate which per...

There have been growing calls for more education in genetics for the public and in schools. However, studies of the public, school children, and those who have received genetic counselling show that understanding of scientific genetics is very limited. A hypothesis to explain this limited understanding is proposed and tested. It is argued that there is a widespread lay knowledge of inheritance ...