https://www.selleckchem.com/products/guanidine-thiocyanate.html [Figure see text].We review the evolutionary origins of the human diet and the effects of ecology economy on the dietary proportion of plants and animals. Humans eat more meat than other apes, a consequence of hunting and gathering, which arose ∼2.5 Mya with the genus Homo. Paleolithic diets likely included a balance of plant and animal foods and would have been remarkably variable across time and space. A plant/animal food balance of 40-60% prevails among contemporary warm-climate hunter-gatherers, but these proportions vary widely. Societies in cold climates, and those that depend more on fishing or pastoralism, tend to eat more meat. Warm-climate foragers, and groups that engage in some farming, tend to eat more plants. We present a case study of the wild food diet of the Hadza, a community of hunter-gatherers in northern Tanzania, whose diet is high in fiber, adequate in protein, and remarkably variable over monthly timescales. Expected final online publication date for the Annual Review of Nutrition, Volume 41 is September 2021. Please see http//www.annualreviews.org/page/journal/pubdates for revised estimates.The current study applied the General Strain Theory (GST), Social Disorganization Theory (SDT), and Social Control Theory (SCT) to examine the association between exposure to verbal conflict between a mother and her intimate partner, and aggressive behavior of urban adolescents. The sample included 518 urban adolescents (96% Black), aged 14 to 17 years. Descriptive statistics, structural equation modeling (SEM), and moderation analyses were conducted. Consistent with GST, exposure to verbal conflict between the mother and her intimate partner was indirectly associated with aggression, as mediated by emotional distress. Also, consistent with SDT, neighborhood violence was positively associated with aggression. Neighborhood violence was associated with exposure to verbal conflict between their