Mating systems, influenced by the social and ecological environment and individual attributes, are fundamental components of animal social organisation, impacting behaviour, animal distribution, ecosystem processes, individual reproductive success, and population dynamics. Bats are of particular interest for studies of mating systems as they are thought to exhibit a greater diversity in mating systems than any other mammalian order, and thus make great models for improving our fundamental understanding of causes and consequences of social organisation. Here, we review the current knowledge of bat mating systems. Our analyses show that research on bat mating systems has not kept pace with research on bats in general and that traditional typologies do not accommodate the mating system of several species. Therefore, we propose an alternative, functional framework to categorise mating systems of bats and by extension of other taxa. We argue that mating systems can be classified according to a male reproductive skew continuum, with an increasing skew from monogamy to true lekking. We include an additional category of lek-like mating system along the continuum to account for previous trans-categorical cases that have the appearance of resource defence but are functionally akin to a lek. The new framework has a total of seven categories: promiscuity, monogamy, female defence polygyny, resource defence polygyny, a lek-like mating system, exploded classical lek, and clustered classical lek. Applying this framework to bats reveals that lek mating systems are more prevalent in bats than previously recognised. It is our aim that this review and the proposed framework provide a greater understanding of bat mating systems particularly and provoke research into the factors that shape mating systems across animal taxa more generally.

The social system of animals involves a complex interplay between physiology, natural history, and the environment. Long relied upon discrete categorizations of \"social\" and \"solitary\" inhibit our capacity to understand species and their interactions with the world around them. Here, we use a globally distributed camera trapping dataset to test the drivers of aggregating into groups in a species complex (martens and relatives, family Mustelidae, Order Carnivora) assumed to be obligately solitary. We use a simple quantification, the probability of being detected in a group, that was applied across our globally derived camera trap dataset. Using a series of binomial generalized mixed-effects models applied to a dataset of 16,483 independent detections across 17 countries on four continents we test explicit hypotheses about potential drivers of group formation. We observe a wide range of probabilities of being detected in groups within the solitary model system, with the probability of aggregating in groups varying by more than an order of magnitude. We demonstrate that a species\' context-dependent proclivity toward aggregating in groups is underpinned by a range of resource-related factors, primarily the distribution of resources, with increasing patchiness of resources facilitating group formation, as well as interactions between environmental conditions (resource constancy/winter severity) and physiology (energy storage capabilities). The wide variation in propensities to aggregate with conspecifics observed here highlights how continued failure to recognize complexities in the social behaviors of apparently solitary species limits our understanding not only of the individual species but also the causes and consequences of group formation.

Theoretical models relating to the evolution of human behaviour usually make assumptions about the kinship structure of social groups. Since humans were hunter-gatherers for most of our evolutionary history, data on the composition of contemporary hunter-gatherer groups has long been used to inform these models. Although several papers have taken a broad view of hunter-gatherer social organisation, it is also useful to explore data from single populations in more depth. Here, we describe patterns of relatedness among the Palanan Agta, hunter-gatherers from the northern Philippines. Across 271 adults, mean relatedness to adults across the population is r = 0.01 and to adult campmates is r = 0.074, estimates that are similar to those seen in other hunter-gatherers. We also report the distribution of kin across camps, relatedness and age differences between spouses, and the degree of shared reproductive interest between camp mates, a measure that incorporates affinal kinship. For both this this measure (s) and standard relatedness (r), we see no major age or sex differences in the relatedness of adults to their campmates, conditions that may reduce the potential for conflicts of interest within social groups.

Diet is understood to be one of the most important influences on public health and chronic disease, and is particularly implicated in the so-called \'obesity epidemic\'. Yet interventions aiming to improve the population\'s dietary habits have failed to translate into widespread health improvements. Simultaneously, the knowledge landscape has become increasingly contentious, with fat activism challenging dominant approaches to how obesity is framed and addressed. This paper is based on 24 ethnographic interviews, and explores the work of health practitioners promoting therapeutic carbohydrate restriction (\'low-carb\' diets) for people with metabolic health conditions. Drawing on Michel Callon\'s study of technological innovation, I show practitioners engaging in \'on-the-job sociology\'-situated sociological work to justify, and forge a space for, innovative dietary intervention. These innovators employ physiological explanations of hormones, satiety (or hunger), and pleasure (or shame), supported with personal experience, to emphasise material connections between particular eating habits and the sustainability of dietary improvement in everyday life. They resist fat activist influence on healthcare practice (that has resulted in practitioners avoiding conversations about diet, fatness and health), as well as the more extensively critiqued practices of health promotion. Deflecting blame/shame from individuals, innovators spotlight the role of the food industry in undermining public understandings of food and physiology, and dietary improvement that is achievable and sustainable. Through on-the-job sociology, innovators forge a space to engage patients in collaborative dietary experimentation and improvement. This study highlights the importance of on-the-job sociology in the contemporary knowledge landscape, providing new insights about public health in the making.

Animal sociality plays a crucial organisational role in evolution. As a result, understanding the factors that promote the emergence, maintenance, and diversification of animal societies is of great interest to biologists. Climate is among the foremost ecological factors implicated in evolutionary transitions in social organisation, but we are only beginning to unravel the possible mechanisms and specific climatic variables that underlie these associations. Ambient temperature is a key abiotic factor shaping the spatio-temporal distribution of individuals and has a particularly strong influence on behaviour. Whether such effects play a broader role in social evolution remains to be seen. In this review, we develop a conceptual framework for understanding how thermal effects integrate into pathways that mediate the opportunities, nature, and context of social interactions. We then implement this framework to discuss the capacity for temperature to initiate organisational changes across three broad categories of social evolution: group formation, group maintenance, and group elaboration. For each category, we focus on pivotal traits likely to have underpinned key social transitions and explore the potential for temperature to affect changes in these traits by leveraging empirical examples from the literature on thermal and behavioural ecology. Finally, we discuss research directions that should be prioritised to understand the potentially constructive and/or destructive effects of future warming on the origins, maintenance, and diversification of animal societies.

UNASSIGNED: This research investigated the association between school role in improving parenting skills and the academic performance of secondary school students. And to examine the role of student gender, literacy status of the parents and parental importance to children education in the association between school role in improving parenting skills and students\' academic performance.
UNASSIGNED: A multistage stratified random sampling technique was adopted to portray information from 448 students on a Likert scale. Chi-square, Kendall\'s Tau-c tests were used to determine the direction and strength of association among variables.
UNASSIGNED: The results depicted that the association of children\'s academic performance was found significant (P = 0.000) and positive (Tau-c = 0.215) with school capacitating parents how to monitor and discuss schoolwork at home with children, assisting parents in setting academic goals for children (P = 0.000, Tau-c = 0.225). Moreover, the respondent\'s gender, parent literacy status and parental importance to children\'s education explained variation in the association between school role in improving parenting skills and children\'s academic performance.
UNASSIGNED: The school role in improving parenting skills significantly and positively contributed to children\'s academic performance. Moreover, boys, children of literate parents and children whose parents give more importance to their education with school active role in improving parenting skills were more liable to score higher grades.

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The rate of teenage pregnancy remains unacceptably high in most developing countries. In Rwanda, studies show a rapid increase over the past two decades despite the political achievements of women\'s empowerment, and efforts to curtail child sexual abuse. Unfortunately, the current knowledge of the household determinants of teenage pregnancies in Rwanda is limited, as recent studies have focused on providing numbers with little analysis of proximate causal factors or focused on the individual determinants. The study uses secondary data from the recent Rwanda Demographic and Health Survey (RDHS: 2014-2015) to analyse household factors associated with teenage pregnancies in Rwanda. In addition to descriptive analysis, we ran logistic regression models to determine the level of association between teenage pregnancy and household socioeconomic characteristics. Results indicate that marital status and age of household head, household size, number of bedrooms given the size of the household, and the educational level of the household-head are significantly associated with teenage pregnancy (p < 0.01). Teen girls from small households are more likely to get pregnant than those from large families, while financial, social and educational empowerment of parents, and harmonious household contexts contribute to lessening the cases of teenage pregnancy. It indicates that social and economic support to teen girls which include parental supervision, guidance, and financial care are essential aspects to consider in order to reduce teenage pregnancy rates. The study suggests that in addition to efforts directed to teens themselves, strategies for reducing teen pregnancies should focus on a range of household-level contexts that form two broad categories: empowering parents and maintaining parents\' harmonious decisions on teen girls.

The adult sex ratio (ASR) is important within ecology due to its predicted effects on behaviour, demography and evolution, but research examining the causes and consequences of ASR bias have lagged behind the studies of sex ratios at earlier life stages. Although ungulate ASR is relatively well-studied, exceptions to the usual female-biased ASR challenge our understanding of the underlying drivers of biased ASR and provide an opportunity to better understand its consequences. Some feral ungulate populations, including multiple horse populations, exhibit unusually male-biased ASR. For example, research suggests that the feral horse Equus ferus caballus population on Sable Island, Nova Scotia, Canada may exhibit a male-biased ASR. Such exceptions to the rule provide a valuable opportunity to reveal the contributions of environmental context and trait differences to ASR bias. We aimed to test for bias in Sable Island horse ASR, identify the demographic drivers of bias, and explore its demographic and social consequences. To do this, we used life history, movement and group membership information for hundreds of horses followed through a long-term individual-based study between 2007 and 2018. Sable Island horse ASR is male biased and this skew has increased over time, reaching 62% male in 2018. Our life table response experiment suggested that ASR skew was driven predominantly by male-biased adult survival. Further analyses pointed to sex-biased survival being driven by reduced female survival post-reproduction. Male-biased ASR was associated with reduced harem sizes, an increase in the number of social groups on the island, and reduced reproduction in young females. Our results support the idea that male-biased ASR in feral ungulate populations may be caused by a combination of high population density and high reproductive output. We suggest that female-biased mortality may be caused by females continuing to reproduce at high density, and thus being more susceptible to resource shortages. Thus, our results highlight the strong context dependence of ASR. Furthermore, our work indicates the potential for ASR to substantially alter a population\'s social organisation. Such changes in social structure could have knock-on consequences for demography by altering the formation/stability of social relationships, or competition for matings.

UNASSIGNED: Addressing the determinants of severe acute malnutrition (SAM) among children remains a challenge in Nepal. This study investigated the effect of maternal and social determinants of SAM among under-five children of Nepal.
UNASSIGNED: We conducted a hospital-based unmatched case-control study with 256 under-five children (128 cases and 128 controls). The children aged 6-59 months were taken, and the cases and controls were defined based on mid-upper arm circumference (MUAC).
UNASSIGNED: Backward Stepwise logistic regression analysis of 6-59 months children showed that the odds of SAM were lower among male children (AOR = 0.50, 95% CI = 0.27-0.92), mothers from high socioeconomic status (AOR = 0.469, 95% CI = 0.26-0.83), breastfeeding 6-12 months (AOR = 0.21, 95% CI = 0.05-0.68), breastfeeding ≥13 months (AOR = 0.18, 95% CI = 0.05-0.54) and optimal complementary feeding (AOR = 0.40, 95% CI = 0.22-0.70). SAM was significantly higher among children of the age group 6-24 months (AOR = 2.57, 95% CI = 1.30-5.22) and children with a history of diarrhea (AOR = 1.75, 95% CI = 0.92-3.39).
UNASSIGNED: In order to reduce the children\'s SAM, it is necessary to scale up services to improve the socioeconomic status which includes the education, occupation, and monthly income of the mother. Girls of age group 6-24 months were more likely to develop SAM. Two contributing factors to decrease SAM are the importance of exclusive breastfeeding practices and the availability and usage of soap in hand washing, which are ideal for low cost interventions. To reduce SAM in Nepal, a focus on enhancing complementary feeding through increased affordability of nutritious foods is also needed.