Sex Ratio

Significance This study provides information on sex ratio at birth (SRB) reference levels and SRB imbalance. Using a… Expand

Evolved mate preferences comprise a central causal process in Darwin's theory of sexual selection. Their powerful influences have… Expand

Early life environments shape phenotypic development in important ways that can lead to long-lasting effects on phenotype and… Expand

This review provides an update on the epidemiology of gender dysphoria and transgender identity in children, adolescents and… Expand

BACKGROUND Incidence of multiple sclerosis is thought to be increasing, but this notion has been difficult to substantiate. In a… Expand

BACKGROUND 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD or dioxin), is commonly considered the most toxic man-made substance. We… Expand

Many mammal populations show significant deviations from an equal sex ratio at birth, but these effects are notoriously… Expand

OBJECTIVE To estimate the prevalence of diabetes and the number of people with diabetes who are ≥20 years of age in all countries… Expand

Parents will increase their fitness by varying the sex ratio of their progeny in response to differences in the costs and… Expand

BECAUSE the primates are a particularly well studied group they provide a rare opportunity to investigate the adaptive… Expand