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Modern humans differ from wild great apes in gestation length, weaning age, interbirth interval, sexual maturity, and longevity, but evolutionary anthropologists do not know when these distinctive life-history conditions evolved. Dental tissues contain faithful records of birth and incremental growth, and scholars suggest that molar eruption age, tooth wear, growth disturbances, tooth chemistry, and/or tooth calcification may provide insight into the evolution of human life history. However, recent comparative approaches and empirical evidence demonstrate that caution is warranted when inferring hominin weaning ages or interbirth intervals from first molar eruption, tooth wear, or growth disturbances. Fine-scaled studies of tooth chemistry provide direct evidence of weaning. Early hominin tooth calcification is more ape-like than human-like, and fully modern patterns appear only after Neanderthals and Homo sapiens diverged, concurrent with changes in cranial and postcranial development. Additional studies are needed to relate these novel calcification patterns to specific changes in life-history variables.

For emerging public health risks such as climate change, the Canadian federal government has a mandate to provide information and resources to protect citizens' health. Research is a key component of this mandate and is essential if Canada is to moderate the health effects of a changing climate.

Disparities in voter turnout have increased significantly over the past four decades. Members of historically oppressed groups, those who are low-income, and or who have lower levels of education vote at significantly lower rates than white, wealthy and or more educated community members. These disparities correlate directly to political power and the eventual allocation of resources by elected officials. Therefore, eliminating these disparities through targeted voter engagement with client groups is particularly important for the profession of social work. This article describes the conceptualization of voter engagement as a three-legged stool, consisting of voter registration, regular voting, and basing voting decisions on self-interest. Without attention to all three legs, the potential for generating political power collapses, resulting in minimal influence on elected officials.

Disparities in voter turnout have increased significantly over the past four decades. Members of historically oppressed groups, those who are low-income, and or who have lower levels of education vote at significantly lower rates than white, wealthy and or more educated community members. These disparities correlate directly to political power and the eventual allocation of resources by elected officials. Therefore, eliminating these disparities through targeted voter engagement with client groups is particularly important for the profession of social work. This article describes the conceptualization of voter engagement as a three-legged stool, consisting of voter registration, regular voting, and basing voting decisions on self-interest.Without attention to all three legs, the potential for generating political power collapses, resulting in minimal influence on elected officials.

Disparities in voter turnout have increased significantly over the past four decades. Members of historically oppressed groups, those who are low-income, and or who have lower levels of education vote at significantly lower rates than white, wealthy and or more educated community members. These disparities correlate directly to political power and the eventual allocation of resources by elected officials. Therefore, eliminating these disparities through targeted voter engagement with client groups is particularly important for the profession of social work. This article describes the conceptualization of voter engagement as a three-legged stool, consisting of voter registration, regular voting, and basing voting decisions on self-interest.Without attention to all three legs, the potential for generating political power collapses, resulting in minimal influence on elected officials.